its always going to be hard to put a price on them tbh. mine owes me about 3k so far (including the car) and ive still got a lot to buy including brakes, management, looms, interior, guages, new gaskets, and i need to buy a new cylinder head(mines cracked) and do the HG, need to find a glanza bonnet and have my whole front end painted then theres labour for the conversion then getting it mapped then eventually coilovers(when they come down in price) and prob some other things along the way so ive still got a fair bit of spending to do. i couldnt put a price on mine when its done, but thats just the way it is when you modify cars but if you can do all the work yourself and keep it as a sleeper it could be done for around 3k easy