back tire on cruiser to big!

I built several cruisers with BGF engines, and had to mount the sprocket dished side out and use 1.95 tires to eliminate chain rub.

Same here. I have a 1.95 on the back and don't like it best, but it works.

There is a part that mates with the left cone/d-shaped extrusion where the coaster arm fits, that moves the coaster arm out 1/2", for about $10 but I can't find it in stock.

If someone had a bench vise I could use, I might be able to bend the torque arm a little and re-space & re-dish my wheel for a little more clearance (reverse dish, flat on right side)

1.95 tires are cheap though, $10 at Nashbar and Niagara Cycle.

Sometimes I will use the skinny sprockets and throw on a 410 chain with the sprockets reversed. That will also give you a tiny bit more clearance so you won`t get black stuff on your whitewalls.

Spooky Tooth I think sells an adapter for your brake lever. It brings it out far enough to get it out of the way.