hey, welcome to nico and congrats on picking up such a low mileage 240. def dont got with a truck turbo as itll be way too big for any 4 cylinder to use. if you want a cheap setup your best bet is to go with a bottom mount t25/28 ebay mani with a t28. you could get close to 250 maybe with that turbo. if you want better than cheap, check out
http://www.jgstools.com as they have a nice decently priced setup for the ka. not to mention theyre in oregon as well. im running one of their kits and the quality is great. with that turbo youll be at 250 for sure and could easily go to 300 with proper engine management. use the search button before you have to ask any simple questions as most everything has been covered time and time again. also check out the faq sticky up top.