modified good condition TT than to do a TT conversion. To take a stock NA and convert it to TT is going to run at a minimum of 4k (assuming you do ALL labor) and then you will be left with a TT that probably still needs certain maintenance done. More likely the swap cost will end up at 6k+ if you add any mods + misc expenses. 4k NA + 6k conversion = 10k+ you could of spent on a much nicer TT. Once you factor in wheels, suspension, bigger turbos, etc...that 14k TT probably has 20k in added parts.
You can get a lot of car if you keep your eyes out on this forum for 10-14k.