Hey Ed ,now that's what you call making a plan, when you buy your wheels use 8or10in. air or hard rubber tires " preferably air "that are plenty wide for the back you will be glad you did they roll much easier let me show you how i know this ,this is a chop saw stand i built and the old trusty MM 35" see pic"the first chance i get those small casters are coming off and i am going with the axle and air tire method ,just try rolling that across your yard not worth a s**t .the 2 wheel dolly method is what i should have started with . i know i got off the subject a little but i like to pass on what i have learned to help others because they have helped me !that's what you get for trying to save 10 min. and 10 bucks "STUPID" ! and what ever you do don't weld the swivels on i see guys do that and i say what if you ever bend or break one you got 2 problems. drilling 8 holes and buying 8 bolts and nuts is not going to put anyone in the poor house saving 5 min. to save 5 bucks sure doesn't work for me , lets see those pics. good luck Chris