What 4age for AE70 (DX)?

[Hachiroku]

Hey all, I'm considering doing a 4age conversion on a DX and was looking for a bit of info on which motor would be best for me. This would be my first engine swap so it has to be reasonably straightforward, though I'm not completely incompetent I'm on a limited budget so it can't be too expensive. Has to be reliable but with a bit of poke too. The options I'm thinking about are:

Stock rwd Bluetop, maybe with mild cams.

Stock Redtop non-tvis smallport with modded intake manifold (do the bigport exhaust manifolds fit?)

7afe/4age hybrid (is this straightforward? will the stock ecu be sweet?)

Maybe look at a 20v, though I'm thinking this may be out of my price range.

Any help is appreciated

[AE85coupe]

smallport is a great engine (i'm bias though haha)

bluetop manifold won't fit on them, so you will have to modify the original manifold

also you will have to modify the water lines to suit rwd as well

but its worth it