Sorry if my first post wasn't helpful. Lol.
My belief is that any power adder will shorten the life of the I5 dramatically but there are a few forum members running forced induction on I5's with good luck.
A V8 swap can be left dead nuts stock, make much more horsepower than the I5, and be as reliable as any normal car/truck.
I purchased a supercharger for my 10,000 mile truck and had no worries about installing it. Unfortunately, I never got around to it and that truck is now gone. I currently have a 188,000 mile truck (that's already had the engine replaced once) and a 6.0/6l90e kind of followed me home the other day. I'm hoping to install it in my H3.
I think a forced induction kit will be cheaper and easier in the short run but the V8 swap will be a one and done kind of deal with nothing to worry about once complete.