New team Gingerman more questions

There are spots with electricity available, but i think those are reserved well in advance.   I’d definitely bring a generator... never know when you need to run a bunch of stuff all at once.   

As far as tires go, your plan sounds reasonable, but if you save money is really a question of how long you’ll be willing to run on a “passenger car” tire vs a purpose built 200 treadwear tire.  I see lots of “light” b and c cars go 1-2 or more(?) races on a direzza or falken.  I’d be willing to bet after one race you’ll be jonesing for a good tire so if you switch then you may have actually spent more scratch.   Fast a cars might go through 4-6 tires (or more) per race.

The rear doesn't do a lot of work, but with how heavy your vehicle is I'd bet you might have some issues with your rear drums. I'm 99% sure that anything related to brakes is budget-exempt, so it's a question of whether you'd rather spend the money on beer or rear brakes.

Yokohama IMO isn't known for a laps/dollar tire, Hankook RS4's are your friend here unless you are sponsored by Yokohama. Decent paced tire that'll outlast nearly anything and take abuse really well. I'm running RS4's on our Lemons miata and time attack/HPDE prelude and I'll usually get ~20-30 hours on the miata and ~8-10 events on the prelude. Relatively speaking, on my time attack miata I'll get 1.5 events out of A052, 2.5 events out of RT660/RE71R/RSpro.

We have a small welder and small generator. The generator can power the welder at anything below half power and it's always gotten us through whatever we needed. However, if for whatever reason we need to weld something thicker, almost everyone at races has a generator bigger than ours and we just have extra beers in case we need to barter to borrow a bigger generator. I'd recommend having a generator, but you can live without it.

Jackhole launching a spring into Ohio made me laugh bc that will prob be me!  Teammate here said we should take the old parts with us so you two are on the same wavelength about me losing parts :-)

Ran drums on the back of a front heavy RWD Celica for a couple of years, they will be fine as long as they are maintained and it sounds like you have replaced everything, as others say they don't do much anyway. The one thing to do is adjust the rears after the day racing on Saturday as a little brake shoe wear will result in a pedal that is lower than it started and can make you think there is some other issue.

+ 1 to the Falken or Hankook 200TW tires.  Our first build we ran cheap passenger Pep Boys tires and they didn't finish Saturday.  Getting an actual 200TW tire will last longer and dramatically increase your performance on track.  I know Lemons is sponsored by Yokohama and you have a chance at winning a free set, but the two brands I mentioned tend to be around $50 less per tire. You are guaranteed to save $200, to me that seems like a better deal. 

Also, brake pads.  Powerstop is not often considered a top brand for endurance racing and drilled rotors often crack.  You didn't say what you actually have, but you may want to bring an extra set of pads.   There are other brands like Hawk, Porterfield, etc that make pads that will last you the entire weekend and possibly two.  They cost more initially, but the life of the pad pays for itself.

Interesting that you say that.  I find the Hawks to be the most reasonably priced of what I would term "premium" race pads (i.e. Porterfield, Pagid, etc).