First off, its your car and if you like the hood then thats the ONLY thing that matters.

And as cobra red said, nitrous loves compression. Now 10.5 is a hair on the high side for a blower but with a nice tune and forged internals you could throw 9 psi at it all day long and be very very safe. The 9 psi hit would give you about 700-730 rwhp and the nice thing is the car will drive exactly how it does now when not under boost and will kick harder under boost then it did with the nitrous AND
you dont have only 40 seconds of fun before you have to refill it. Plus you have some trunk room again.
BTW: Meth dont make a bug difference with Nitrous but blowers LOVE meth injection. With that running as well then 750 is no problem. The car will be an absolute torque monstor! Should run mid 9's and be able to hit 220ish.
Definatly look into a big brake upgrade.