Under $4k budget build LA360 build

How? I haven’t fully run the numbers, but I was thinking $4k was a good number. Should I be shooting for $3k?!? There shouldn’t be much machine shop work as it was prepped by his local machine shop and was ready for a build before the PO went another route. It was stored covered in a climate controlled environment and looks legit through pictures. I hope that’s the case.
I had alot of good folks on here help me out! I got really cheap part and even a bunch of free ones. Search around ask around place want ads etc.