Update: Making some more boolits. I tried a Lee Bator mold in the past for my 5.7x28, didn't work so good, so I shelved it. For the TCM, I sent it to a guy named Eric and he shaved about .097" off of it to make these little plain base, 41gr pills.
Working on coating them right now.
As for cost so far:
$119 P80 Lower
$400 RIA Upper
$50 Modified Lee Mold
$50 Once fired brass
About $800 for the project so far, including some LWD parts and the reloading stuff. If you went bare bones, and maybe had some G17 mags laying around, you could do this for about $570.