Here's the deal with adapters.
Let's differentiate between a DRAW tube that the pinion gear moves, and the PULL tube that your hand moves.
The pull tube goes in the draw tube. You rough focus with the pull tube, then fine focus with the draw tube. It's a good idea to center the draw tube in it's throw before rough focusing with the pull tube. That way you have equal fine focus in and out.
The Pull tube is the one that has the eyepiece ring on the end. You need to MAKE SURE that what ever is on the end of the pull tube is fastened solid and large enough to keep the pull tube from falling into the OTA, through the baffle and through your lens. I know.
Turns out I only have ONE original fully functional eyepiece ring. The other two OTA in entry #10 above have no fitting on the end of the pull tube. I have to be very careful not to hold the focuser up since the pull tube can slide completely into the OTA. Notice the mounted OTA are focuser down and finder tucked under tripod.
The pull tube is internally threaded. I don't know the specs but I did check with a few other Tasco, a Towa 339, a Mayflower 80mm, ATCO, a.....nothing else fit the 10TE.
The OUTSIDE diameter of the pull tube is 1.264" give or take 0.001" which is a blessing. Anything that will tightly sleeve the pull tube, will also be very close to fitting your 1.25" eyepieces. In other words, the pull tube is just a hair larger than standard 1.25" eyepieces. If you use some kind of pipe to sleeve onto the pull tube, then you need to MAKE SURE it is fastened solid enough to keep the pull tube from slipping out and falling into the objective...…
I have a bunch of scrap aviation tubing (radical landings by intent, another story, ok sometimes not by intent too) that is sleeved but I'm not sure if any is 1.25", I do have some 1.5" I used on a countershaft....at any rate it would be very easy to ream out an aluminum tube that is 1.25" inside diameter. Sleeving can come in a variety of clearances and 1.26"+ might be available. Use a thick enough sleeve to be able to drill an tap for your eyepiece set screw.
Sleeve onto the pull tube far enough to be able to drill and screw them together without going through the internal pull tube threads. No sense in boogering up those threads. I'm not going to 1.25" eyepieces so I'll be working with the internal threads or internal sleeving for 0.965 accessories.
Baader makes a ring/adapter which converts the focuser to T2. Then you can use all kinds of cool stuff that attaches to T2 (like the Baader 1.25" focusing eyepiece holder - brass compression ring with micro helical focuser - the best). One can also add a 2" adapter to the T2 adapter and while it will give a larger FOV than 1.25", it's still not a full 2" and vignettes.
Do these screw directly into the pull tube? Link to the specific item? Do you know the pull tube thread specs?