OK, finally time to make the trek to the LWS and get going with the MIG. Got a list going with a few questions.

Mostly will be welding not-very-clean steel between 1/8 and 1/2. Got a couple spools of wire already, 1lb ER70s6 .023 and part of an ancient spool of Verti-Cor70 dual-shield .035.

And for the shopping list:

Tips
Diffusers
Gas, the Verticor calls for 75/25, but I was actually leaning towards 80/20 for a better shot at spray transfer. Opinions needed.
33lb ER70S6 for the go-to spool, I'm thinking .035.
1lb Al, 4043 I presume?
Hardfacing wire - abrasion resistant, any recommendations? Reasonably priced sources?
MIG pliers, only $7 at HF, what the heck.
Wire cleaning pads.
Regulator

Am I forgetting anything? Getting something I shouldn't be?