Regarding skill checks with tools, there is interesting reading in Xanathar's Guide to Everything on p 78 in general and on p 82 on Land Vehicles in particular.
Improvised weapon with rocks? Otherwise stand by Angis. He has 11 handaxes and 1 dagger, besides his heavy crossbow. Can you use any of those?I remembered I don't have ANY means of affecting range. No cantrips, no crossbows/bows/javelins...nothing!
I could cast...but I don't have many spells remaining...we may need them...
History and religion check: 1D20 =  = 16OKAY, we're BACK. Sorry about the delay in this game, I did that silly thing that I sometimes do and I started another game instead of giving myself a break. I know!
A few notes for you:
1) Don't miss that you can have a bonus 15 feet of movement before taking your R1 turn. I clumped you up for 'sneaking up' but you can move into slightly better positions before the wolves start howling.
2) Yes, that is a way down the cliff there at the bottom of the map (AG37 or so). At it's highest point, the cliff is just over 20 feet. The lower cliff closer to the river is similar.
3) The orc at W27 looks pretty badass. Carries himself with confidence. Has two swords.
4) The orc at R28 has one eye missing and wrapped in cloth (freshly gouged). Vairar and Darfin definitely know what that means. Anyone who rolls a dc12 history or religion does too. If you don't know what it means, feel free to ask.
You should make quick work of this group, but you never know....
Angis is following slowly, shooting as he goes. Angis is better in melee, but he's in no hurry. He's fine shooting orcs as he goes. He isn't going to let Tommi take the brunt of it.