Just put it together with what you have or can get cheaply. My car runs mid 12's and I bracket race it all year as much as I can. I have fun with it.

FWIW
My dads challenger is basic:
Probably at least 3700# with driver
10:1 440
stock 906 heads, no valve job, just put new springs on
Comp XE294H 519/524 250/256 @.050
stock stamped steel rockers
Torker 2 intake
850DP holley
9.5" 3800 stall PTC
basic rebuild 727
4.56's and a 30" tire

11.91@112 best
nothin special but its still fun.