As far as budget, I'm not entirely sure because I really don't know an average for a build. I know I've seen people saying they've spent anywhere from 5k to 20k on an engine build. I have funds available for the process, however. Currently, I have a 904 trans that I'm considering switching to a 4-speed or 727 (haven't decided), 1 5/8 TTI headers, 8 3/4 rear with 3.55 gears, 27" tires 15x8 in the back and 15x6 front, also considering moving to 18's.
My main thing is I don't have the knowledge to match parts to what I would like an engine to achieve. Like I said, mainly a strong runner driver with occasional autocrossing.