PhilDAS never content with the bikes I already own

The more I think about it, the more this option potentially sounds like the best

Enough to cut the bottom off and expoxy it as far down the inside of the seat tube as you can to make a shelf/shoulder for the rest of the post to sit on? cut some additional shims to give you adjustment of a few min increments up from where you want it (to use inside the seat tube before the clamp)? The bottom of the shortened seatpost can then sit against the glued in section of post and secure with the clamp? Add a 2mm shim to make it higher if required etc?

The seatpost is undersized compared to the seat tube already. With the clamp done up I can rock the saddle side to side about a pivot point at the clamp in the frame so even to glue the seatpost fully in place, I'd have to thicken it out at the bottom of the post and glue it in place.
So this is the exact same process only I wouldn't have to also glue and wrap the post at the top and I could cut down the post in the future to lower it or buy a replacement post and start again if I need to raise it.