2x kin 1x therm
They do marginally more kin than therm. Also, kin is the more popular damage type for PC's, in case you run into them.
One named LARp should be all you need with those three hardeners. With 4/4 cap skills, 4 cap rechargers and one CPR you can run a LARp'er + AB for quite some time, and a lARp forever in a domi and prolly a mega without firing guns.
My domi NPC'er is this:
4x Large Neuts
2x Tractor Beams
1x t2 AB
4x cap rechargers
1 LARp
2x kin
1x therm
2x Nanofibers
1x CPR
Runs either AB or LARp forever. Nano's and tractor speed up loot collection to nothing. You only need the AB to close, once you're in range, the two tractors make loot collection a breeze.
Remember, cruisers and BC's in fade drop named expanders.
Also ver, are you thinking about tanking for mining, or NPC'ing? Cause the tanking req's are faaar different for the two.