Well I've gotten started. I'm cutting with a mitrebox and hand saw that I got at Home Depot for $15. My only worry thusfar is about the EXACT measurement the plans give.
'Cut a 1.83" pipe segment....' Me and my calipers are doing the best we can. Anyone else have problems with the measurements?
Thanks!
Is that the yellow miter box? If it is I got that same one

Not a bad product actually.
I made it 80% through twistygrips with the white pvc pipes a few months ago. I used a metric ruler so I got pretty close, but in the end it didn't matter much one way or the other if you were off .1 in or not, IMO. I got a working(mechanically) TG and just wasn't that happy with it. Regardless of what the website said it didn't 'feel' much like the arcade controls. Gave up on the white ones(a learning experience).
BUT, I went to Homedepot again on Sat. and during my mindless wandering I happened upon the gray plastic(pvc?) area and found some better stuff - a 4" junction box for the middle and a t-connectors for the handles. They are actually pretty close in proportion to a real controller I think. And cheap, too. I'll take pics of what i have so far and post tonight when i get home from work.