Thank you all for the input, its been greatly appreciated.
Update time.
I've spent some time looking at the mount and tripod and decided its not worth battling with. The legs of the tripod are jammed completely and won't extend, even after a good soak with some silicone spray. The mount body is nearly all plastic construction so is showing signs of wear on some threaded parts, and again like the tripod some parts are so stiff that even after removing parts and applying spray there was no improvement.
My plan of action is to replace the mount and tripod with something that is a little "future proof", replace the knackered focuser with a 1.25" version (no need for crazy expense) and a star diagonal, then I can use my existing eye pieces that have been sitting unused for the last few years.
The adhesive that fixed the lens housing onto the tube has also failed, luckily the polystyrene tray that the tube packs into gives me the "length" that the tube should be, combined with a new focuser that has more travel that the existing focuser and this should help compensate if I secure the housing a bit too far down the tube.
Look out for updates.
Thanks