ORIGINAL: out of money
I got my 60 size set up with a tail wheel but no control rod to it yet. I have lightweight 5'' main wheels and I'm moving the battery back as far as possible. Also has an OS 90 on it. I'll try to get pic of tailwheel bracket with 1.5'' tailwheel posted soon.
Here is pic of tailwheel temporary setup without control rod and maybe small plywood piece added for support, I might do a separate servo to.