D&D 3E/3.5 Converting a race from a homebrew system to DnD 3.5

[System Ufera]

Hello, everyone! As some of you may be aware, I am designing my own PnP RPG system from scratch. However, as of right now, my group is taking a break from testing my game. One idea for a campaign that was brought up was a DnD 3.5 campaign in which every race of medium size or lower is extinct (the aspiring GM is a bit strange, to say the least). In addition, the party of the campaign will basically be a freakshow, even in context; in other words, the weirder, the better. Finally, we're given an "allowance" of a level adjustment up to about 5 (he hasn't finalized it yet); in other words, a level adjustment of 5 or below will be ignored.

I think I can come up with the weirdness myself, but what I'm seeking help here for is to design stats for a race that exists in the game I'm designing, but which does not already exist in DnD 3.5. I've attached the stats for race as it exists in my game, but it won't do much good on its own, since it's in the terms of a system that hasn't been released yet (really, I only uploaded for those who are curious). I've also attached a rough-draft, anatomical outline-style drawing of a member of the race, since it'll be easier than actually describing what the race looks like. I'll describe the stats below:

The Grendemoth race consists of massive, extremely muscular creatures, thus meaning that a bonus to Strength is a must, and a bonus to Constitution wouldn't be too far-fetched. Unlike other races that are big and strong, the Grendemoth race also has a strong force of personality, which would imply a bonus to charisma, were it not for the Grendemoth's unexceptional charm. I'm thinking Strength would be the highest bonus here. As for penalties, they generally have trouble grasping advanced ideas - Intelligence is probably going to be penalized.

What truly sets this race apart from other hulking brutes, however, is their fierce loyalty, based on their extreme maternal instinct (it's a little awkward to explain, but if you really want to know, the reason for their maternal instinct is explained in the attached document). This would probably be reflected in the racial features, which are easier to convert from my system. Basically, in the original system, they gain the following:

-Bonuses on rolls to aid their allies
-Much greater damage output when adjacent to defenseless allies
-Near immunity to fear when an ally is in danger
-They can (with great effort) choose to not target an ally that would otherwise be targeted by a harmful ability
-The only way to get Grendemoths to betray allies is to deceive them (they can't be tempted or coerced)

The only other ability I can think of is scent, which is similar to another ability they get in my system.

What I'm wondering, therefore, is what would be reasonable in terms of actual numbers to represent all of this. Ideally, I would also like to take advantage of the level adjustment allowance (see first paragraph of this post), so that's something to account for.

 

[GMMichael]

What truly sets this race apart from other hulking brutes, however, is their fierce loyalty, based on their extreme maternal instinct (it's a little awkward to explain, but if you really want to know, the reason for their maternal instinct is explained in the attached document). This would probably be reflected in the racial features, which are easier to convert from my system. Basically, in the original system, they gain the following:

-Bonuses on rolls to aid their allies
-Much greater damage output when adjacent to defenseless allies
-Near immunity to fear when an ally is in danger
-They can (with great effort) choose to not target an ally that would otherwise be targeted by a harmful ability
-The only way to get Grendemoths to betray allies is to deceive them (they can't be tempted or coerced)

The only other ability I can think of is scent, which is similar to another ability they get in my system.

Here's a good starting point. The minotaur is a +2 level adjustment, which will give you room to add Rage (bonus damage when allies are down), fear immunity, and intimidate immunity. You'll have to put the minotaur's three monster feats to good use as well.