Boooo! Stick with the Mk3!!! I can understand why your after something else tbh. Done everything you want on the mk3, and without throwing silly money at it, you wont get much better in terms of looks, comfort, and performance, and you will end up throwing the money down the drain anyway. New Mk4 project it is, but I dont think you will enjoy it as much. Mk3 is the last of the real DIY cars before too many electronics etc, and specialist tools come in to play on the mk4 to make it viable.