turboing a 4agze is not hard me and my m8 are doing it now , in saying this we have access to all the welding ,cutting,planing, and all other bits of machinary but its been simple so far , just need to get the computer sorted and it sweet . id stick with the 4age to be honest u dont wanna go straight into that kinda stuff first off u'll end up fucking it , be like most people here and get a standard motor then slowly move bit by bit after that , that way u get an idea of how everything works and so on , ke30 nice....