Just bought a new ride

I have an addiction and I need help, I just bought a 72 slant six duster( year I've always wanted)for 500 bucks runs and drives typical rust in Mopar area lower qtrs. but that does not bother me needs paint and a 340 and rear end And I'll be good to go some one get me help lol my girlfriend wants to kill me on the inside I can tell I will post pictures once I get home tonight after work

Guy has a .030 over 340 for $300 complete bottom end I need it now