1994 180SX project, please any input at all

I'm going to save up and buy a 1994 hatchback 180SX (preferabably shiny black, or at least get a paint job done that way).

It would be a 2.0L turbo (SR20DET i think?)
4 cylinder
4 speed auto

here are some things i want to do with it
(tell me if the power to weight ratio would be legal and if not how could i tone it down a bit or get a lower power engine).

I'd like to convert it to 6 cylinder with EFI and 5 Speed manual, and is it possible to convert it to 4WD/AWD, and I'd like to put a RB30DETT in it, and i'd like to have 50/50 power ratio is it? or whatever the original power ratio is with stock etc, what would i have to put in it to mantain good handling and stability while still being able to drift heaps good in the car, new brakelines and power steering right? but i assume thats not all?

in a nutshell, i want a 94 180SX because it looks good, and get the most power (or legal amount of power) out of it i can, etc, any tips or advice would be appreciated, does anyone have any ideas on what else i could do with it as well?

I'd like to take this oppotunity order the following of our 180SX,if this available for purchase:
1993 year 180SX White Perl 100000kmile, SR20 Turbo good condition ,good looks .
If you want this one please let me know, then , I'd like to pictures photo send to you.

Plese more details and don't hesitate to ask them to contact me.

From Japan : KAZ
E-mail [email protected]

I Have A 1994 Nissan 180 Sx Sr20det Right Now It Is Black 5 Speed Greddy Type S B.o.v I Am Looking To Sell It Also Let Me Know If You Are Interested