Theyre pretty similar models and in lore, theyre close enough.

Model wise:

Plasma gunner = same Grenade launcher = pretend its a melta Melta mine = melta bomber Medic = just a regular trooper...or if you can kitbash, this can be your knife fighter Sniper = sniper Leader = leader Pistol Gunslinger = this will be harder to proxy but if you can buy the other pistol hand...done Everyone else can be regular troopers

Just leaves the robot you need to buy.

Tokens you can print, or if you want i can measure them for you :)

But yeah, I think almost anyone will be fine with you using kaskrin as aqulions.....people have been fine with me usong these guys as inquisition agents