i will eventually buy a twin turbo but i was contemplating just buying a vg30dett and rebuilding it with all of the upgrades that i want to do and then when i buy the car just swap the engines and sell the one i pull. my thought process behind this is that i can spend less money at a time and the tt will most likely cost less when i do buy it. i have my na that i love to drive now so im in no big hurry to have a running tt. if this takes me a couple of years then im okay with that. is this a good idea or no?