That might make it a bit easier. Counting distances can just be difficult.
If this isn't more work for you, I think it's great.
I'll roll for Averiel, since the elves seem to have taken a liking to Dandin anyways.
Also, would you say that now that he's got the chain's around the hob's throat it's acting as a garrote? Maybe giving him advantage to hold the grapple and maybe doing damage more easily?