Upgrade choices / suggestions?

[Dan SS2471]

Here is the car's current setup:

Engine/Exhaust:
-rebuilt about 3k miles ago
-204/214 cam - flat tappet
-ported stock heads
-steel center main caps
-double roller timing set
-020 forged JE pistons
-60# mototron injectors
-hotwired Walbro
-3" LT-1 MAF with translator
-TurboTweak chip
-160* t-stat with billet neck
-Caspers cam sensor cap
-3" ATR downpipe
-Turbonetics Evolution wastegate with in-car adjustability
-test pipe with cutout
-Hooker 2.5" catback
-Rebuilt G-80 rear

Stock turbo set @ #18s max right now, stock trans and converter.

Can't make any baseline passes because the trans needs to be rebuilt. Or I should say it's flaring up at WOT and when it warms up it hesitates to shift on th 2-3 and whines a bit.

My ultimate goal is to have a street driven, high 10 - low 11 second car that will see the track a few times a year.

As far going forward, I'm assuming if I go bigger turbo, that the way it's currently configured, that it's got sufficient fuel...? Based on my goal, what would be the required or optimal turbo / converter combo? Also, if I do the converter while doing the trans, will the car still be streetable until I do the bigger turbo?

Based on the re-build specs, how much boost would be considered to still be 'safe' assuming the engine is tuned correctly. Based on what I've read, it seems to be a good starting point to reach my goal. I realize the turbo/converter aren't the only thing that it's going to take but figured they'll be the biggest contributors at this stage.

Thanks in advance.

Dan