N0ni, on 16 October 2016 - 05:46 PM, said:
2 - radar dep and seismic for loyalty mechs
3 - buy a couple BJs to be able to master the BJ-2(L)
4 - Selling excess equipment i don't need (i.e. LRM10 on the SMN-F)
5 - Still need 2 King Crabs to master the 000B(S) but will probably hold off on that some more
6 - make it rain with whatever is left

Let's be honest, if you have enough left after those upgrades for the loyalty mechs, you'll run out of the money you got from the event after one or two modules and have to grind for the rest of that list.