That sounds great Brent.
I was looking at modding my 9x50mm finder as well.
I'll post some dimensions but here are what some ppl have done as you might have seen
http://www.iceinspace.com.au/forum/s...06&postcount=5
http://www.pbase.com/martyt/image/108435381
http://msfastro.net/articles/finder_guidescope/
a ready made finder/guider adaptor
http://www.modernastronomy.com/accessories.html