Should I make the swap to G3?

Watch the Hot Rod garage episode titled "fast, cheap,mopar, pick two"
I haven't seen it in a while, but believe they ended up with over 11k in the car, and figured the car was worth about $4500!
I'd keep your 408! If you want to do a G3 swap, how about into a 2009 V6 Challenger, I'd think that would almost be affordable:)