Pakarinen, I am the last person you want to get started on "Frankenmounts"
Not so much of a Frankenmount; this is my CG4 mount that my C80-HD came with; it all was made in '96. And last of the Vixen optics in a Celestron. Since I have more than a few fracs that I've bought secondhand or made and none of them with a decent mount, I set up a process whereby I just use a piece of flat bar, drill some holes, and weld two 1/4" bolts onto it.
Wingnuts are the way to go when tightening it all up. Like I should be talking about wingnuts when I am one...
When I bought my Celestron Nextstar 102mm, it came with the tripod, but no middle part where all the electronics go. Figures. However, being the wingnut I am and add on to the fact that at the time my daughter wanted to sit out with me and observe, I made a poor man's version of a "Twilight II". I always made sure she got the orange scope.... A bit of thread tape and some axle grease worked wonders for making this abomination rock solid.
Now she's a teenager, not so into it as she once was, so I rebuilt it for my Sears 60mm. So old school, but you gotta love pipe mounts.
And last but not least, the first scope I made with the first mount that I made. The scope is a 60mm that used to be a click-stop Tasco. Too much to explain here; it would seriously need it's own thread
That was five years ago. Now my good buddy Ian (Kanadalanien) has the scope, and the mount now houses my barn-door tracker, which, if my skies ever clear for over a half-hour, I will use it... The az base is an old roller from a vertical belt sander. It rides on bearings with a 5/8" solid steel shaft through it. The alt part is made from two 60mm (go figure) skateboard wheels; that all rides on four bearings. It's all quick release to take it apart, no tools needed. Old bicycle/scooter parts. I can change the weight in seconds, as well as fit it all in a milk crate.
I think that's it. I've enjoyed looking at what everyone else has as well! So many good ideas on such a good forum...
All the best, everyone, and clear skies to you no matter what you use!