Plan on at least: a drill press, a scale, a spinner, a span stick, a hand measuring ball, not to mention pencils or a scribe, polish, sand paper, plug kits, ball cups, super glue, and some stock just to have on hand. Most bowling alleys also charge rent for the space the shop uses.
When all is said and done, you're looking around $3000 to $5000 if most of the bigger stuff is used, but plan on more just in case.
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"Now you can Bowl To Win with Hammer, Track, and Columbia"!!
Sean Davidson
Bowler's World Pro Shop