Reply by Cato

Having a matching bolt pattern would be a nice way to go.

I put a Delta T-2 on my R4511 and it has made a huge difference in operating the saw. I got two holes to line up but I really need to go back at some point and drill out the other two. T-2 was about $150 and a lot of people have made that worthwhile upgrade.

I think the R4511 manual addresses rewiring to 220v, but I would have to go back and look to see if you need a new switch.