Need help and ideas.

Well lets see... I guess I'll start with a little history of my relationship with Corvettes... When I was 18, (May 2011) I bought my first Corvette, a red 1989 convertible with 82k original miles that had been sitting for approximately ten years. I had absolutely NO idea just exactly how much time, effort, blood, sweat AND tears it would take just to get her back to standard factory conditions... about 9 months and approximately $9,000 later, I had her back to stock shape, performance wise anyway. In August 2012 (now 19 years old) I spotted a sharp looking black 1994 Vette for sale on the side of the Highway, on my way home from work, I stopped to ask the guy about it, a week and $7000 later, I drove that bad girl home. Up until last week, I had been driving her, unfortunately, due to unforseen circumstances, she is now in need of a transmission. HERE is where I would like some feedback and ideas because I'm still young and pretty unexperienced. As she sits, she's an automatic with the 700r4 tranny. My vision... as time consuming, aggravating and chaotic as it may sound, it to convert the car to a 6-speed Manual. As far as the motor goes, I'm pretty sure it's still a stock LT1 block, but one of the previous owners has done allot of hit and miss work here and there (cam, intake, headers injectors etc) but the problem is nobody can find a way to get into contact with him to find out exactly what all has been done under the hood. My plan is, or what I would like to so, is pull the motor, bore and stroke it to a 383 and run some kind of forced induction (turbo, supercharger or procharger). Basically what I would like from the community here is some feedback on pros, cons, problems i may run into while converting from an automatic to a manual, I would also like opinions on what to do with the motor. I thank you all for reading this and look forward to what everyone has to say.

Thanks,
Rambo