I have the Iowa toothbar, bought on EBAY. I was going to do a removable blade
like you as well but after a lot of thought I felt it to easy to fix if necessary,
and it kills the idea of a removable toothbar. The bucket
itself is a little over 400 bux too so not a huge deal. I am glad I went
w/ a toothbar, it has prove very handy, and it is not hard to take on and off.