I think buying a turbo Z would be way better for YOU. Until you get a good amount of experience working on a TTZ, you should take the easiest route possible. N/A's have lots of engine room compared to TT's and cars that have over 100,000mi. will most likely have problems in the near future (due to neglect). Be prepared to do some maintenence and possibly replace some expensive parts i.e. injectors, turbos and maybe efi harness. I know I don't paint a pretty picture but it's easier than N/A to TT swap. Have fun and love your new Z. Don't sell your N/A if it is as "mint" as you say it is. Two Z'z are better than one.
