I think I have solidified my setup for this year
car is listed as PTF* / TTF* - 2657lbs, so:
+7 from asterix
+10 for Hoosier Rs (or maybe even As if I'm really brave/spendy/etc)
+1 for 225s
+1 for the "catback" I've got a good friend fabricating for me

= 19 total, maxed out in F
I will probably need about 50-65lbs bolted to the passenger floor at that weight, but its not a bad location for the weight - better than carrying it at the wheels and hanging off the back of the car imo
That Hoosier contingency deal sealed it for me - I've got a decent shot at earning 3-4 tires per weekend with my region (large PTF field, and possibly from TTF as well)
Next year I will likely modify up to TTE / PTE
