I've always liked the idea of a 2.0L 16v in a Mk3 GTI, but they never brought them to the states. So I came to thinking about buying a 16v motor for about $500, and building on it (cams, springs, retainers, rods and pistons, p&p, etc.) and have a nice rev-happy Mk3. It would be a project, then when i needed to, take out the 2.0l 8v and swap in the 16v, and hopefully sell the 8v. This is just thinking here but overall would it be worth it to do that kind of work to a 16v??