hey Alex!
I had a friend with 2 of those units and had an opportunity to use them
they are commercial models and had SCMS which shouldn't be a problem
other than that, I don't recall anything else negative about them
as far as the remote, I picked up a remote here from vanark
to use with my R500 that is a basic Sony DAT remote
it works with MOST Sony DATs... hope you can find one