don’t worry i know KA-Ts are’t cheap, i’ve been researching for 1.5 years plus, but he said he wanted something cheap. the person who made that original kit did not need need a walboro 255, wideband, or any extra stuff. an old used engine, if you read the link i posted, it says exactly that 
enjoy
my mistake he has an “old” afc
just for future reference those prices are not my calculated prices but straight from the forum on KA-T.org