How long is this piece of string? It has a 60-in-one; the string is string

More constructively:
- sheet of 4x8 plywood/MDF $75
- set of two-player controls $50
- front glass (not perspex) $30
- Marquee (perspex fine) $30
- 60-in-one board $50
- half-decent CRT for monitor $75
- key encoder $30
- simple audio amp/speaker $30
- fans $10
- DC 5v/12v power supply $20
- paint & gear $50
- incidentals $50
$500Those numbers are obviously very rubbery. Round that up to a ballpark budget of $600. You might make savings here and there, but you may end up blowing out the budget elsewhere.