celica performance directions... 7afe 7afte, rebuild for turbo, or go with N20? Options

[zipstrips]

ok guys, ive been down the turbo road a few times and have loved but.. if i do it again i will most likely have to get custom pistions/ rods sense i cannot find some 4agze pistons. either way i am collecting parts to get her on the road again for this summer. so far ive got some more gauges on the way, new ACT clutch to be installed... i am waiting to see which pressure plate i want, i'll probably go for the 275tq one just to be safe. either route i go with my motor will be getting a port and polish job... rear drum to disc is also on my list to be done but sense i have had many problems with the turbo i am now looking into N20 (i guess i going backwards as some may see this) but, has anyone here ran nitrous on there 1.8 7afe? im looking for all details like:

what brand nitrous kit?
dry wet or DP (direct port)?
what size shot?
upgraded clutch?
any problems experienced?
anything else worth noting...

thanks for your opinions and input in advance.