Hellion makes a kit for our cars, it's just a "little" bit more than the Vortech mongoose kit, however it does not include tuning ($300-$800) - but it does include a tubular front suspension setup.
Turbo setups aren't super expensive, people are just scared of them because there aren't as many cars running around with them (besides turbo 4cly stangs, but those don't count

). Things can be done real cheap if you do them yourself as well

For me to swap to a turbo kit wouldn't cost hardly anything - I already have the supporting stuff from my mongoose kit so all I would need is hot side/headers, turbo, wastegate, optional boost controller, couple othe nick nacks and I already have a FMIC adequate bypass, and full tubular front end
Advantages of a turbo over a blower are easy to see...very little parasitic power loss (so you can achieve more RWHP at lower, safer boost levels)...wooshing sounds...spooling...brake boosting... rofl Also, if you're talking about "lag", just get in a centri car where it doesn't hit boost till nearly 3k rpm, and that's just 1psi, then you gotta wait for it to build power...and then you gotta worry about belt slip so you don't loose precious boost, so new belt every 10 minutes, 8-rib setup, etc etc...