Well, you would be hard pressed to pick a worse cabinet.
Truthfully it is cheaper to BUY an 03, 04, or '05 Golden Tee then it is to convert something too it. That is the NEW hardware platform and it costs a fortune (thousands).
If you want to use an older model (Classic or earlier), then it isn't too expensive. For that you will need PCB, 3" trackball, trackball plate, grass overlay, golden tee marquee, and trackball connector harness. Think $200-$400. Depending on details, like if you buy the specific trackball overlay, or if you buy an instruction card, and what year of board you use.
I am almost in the middle of my System One (which died on me) cabinet to Golden Tee '99 conversion.
Post a picture of your cabinet first, as some cabinets are totally unsuitable to Golden Tee.