^his budget is 80k... you know how many grands red top would cost 
@novice59, I'd recommend to stick with d15b, there are some reasons why everyone selects D..
f-series are not bolt on for EGs whereas d15b will be easy bolt on swap. F would require to change axles and mounts means more hassle and $
And f18b is not 140hp, it's 138hp. Putting both on quarter mile, d15b would still take lead.
Regarding b16a, if your ride is going to be daily driven then again it won't be a wise choice to have b-series considering fuel prices!
Ps: I'm telling you from user experience.
Welcome to PW forums!