Found the perfect scope!
https://astromart.com/classifieds/as...ksutov-f30-ota
* Big aperture -
TICK, 280mm
* Focal length -
TICK, 8400mm
* Tiny central obstruction -
TICK, 16%
* Optical quality -
TICK
* Mechanical quality -
TICK
* Price tag -
FAIL, £7000
Bugger, just one short...