I need your input Mitsustyle!

[awd-drifter]

Okay, with time and little money these are my plans and i just need your input. my engine has roughly 68,000 miles on it and it drives like a beauty, the only issue is that there is oil leaking very slowly from the Head Gasket. I've been thinking lately and I've decided to keep the Galant a sleeper and slowly restore it. If it somehow runs high 12s or low 13s, I'm done modifying it. Anyways, No matter what though, I'm going to go with DSMLINK as my ems and getting it tuned. the part I'm stuck at is this, i can only do 1 of these only:
(1)Get Evo 3 engine and put it in and call it(engine-wise) done.
(2)Buy a good long block(as a spare engine) locally instead of the Evo 3. and slowly build that.
(3)keep modifying my engine without a spare motor.

please add if you'd like, money($1,000-$1,500) is tight for only ONE of those options. if you have another option, please feel free to post it. Thanks!