Wira 1.5 (A) convert

[sly]

Hello Guys,

After considering whether buy new car or upgrade, I decide to upgrade.
I'm planning to convert my current Wira A/B 1.5(A). But it must AUTO.

So, guys from your experience and knowledge, please advice me accordingly.
This is my shortlist:-

1)4G91 DOHC (A) 115ps
2)4G92 DOHC (A) Non-Mivec 145ps
3)4G93 DOHC (A) NA ECI-Multi 140ps
4)4G93 DOHC (A) NA GDI 140ps/135ps

I'm concern about AUTO gear box realibility (which one is the best). How about spare parts and performance parts availability. Btw, I still wonder GDI engine can fit Wira engine bay.

Hope all of you can advise. Your advice is much appreciate.