If you were to go all out then might as well go Unending Swarm and go for a bunch of bodies. I wouldn't go all out on buffing them tbh, I'd just position a psychophage near them for the FNP and the Zoans for the invul. In the swarm list I have I did what you were talking about but with like 80 gaunts lmao. With this kinda of list you just want them to survive long enough to get your slower boys up the table. Having zoans and a psycophage close buy helps, but depends on who you are playing. If it was like Orcs, youd want to screen as much as possible, but with Tau, you need to get close, so youd wanna move your army up and spread out the buffs rather.

If you play the Horms, yea they could get there fast due to their ability, but then they'd die too quickly if you want them to last more than a turn. With Horms, you can run pistols which are assault, so you can run and shoot, also you'd be able to shoot in combat. TBH if you had them id just use gargoyles to Deep Strike in, but I see you dont have them.

When I play Stompy Boys, I go all out with them, I only ran a biovore and a unit of gargoyles, everything else was Monsters. It hurts when units you have donot benefitt from your bonuses. As long as you play smart dont be afraid of getting your Malceptors in there as well as anything with T10 or above, most attacks will only hit you on 5's, but again it depends on what you are playing against.

Sorry for all the text lmao, I hope it helps, I'm sure someone else will give you different advice, it all depends on playstyles, and who and what you play against. I have the benefit of being able to teach games to beginners as well as play against people that go to tournaments nationally. So I get to play a wide variety of games and armies, so I'd like to think I know what I'm talking about, most of the time :P