I have a Takahashi Sky 90 which I use piggyback on another scope, but I'd like to have a portable mount. Don't care if it's alt-az or equatorial, I just need it to have mounting rings (or be compatible with the takahashi clamp!) for a 95mm (3 5/8 ")diameter tube. I don't want to invest in an expensive Teegul- or Gibraltar-style mount. So it you have an old shabby mount gathering dust I might be happy.