The above scope, asking £900!!!
Optics Warehouse have a second hand S&B 6x42, not illuminated though, for £295. https://www.opticswarehouse.co.uk/preowned-schmidt-bender-6x42-west-germany-model-number-4-reticle-rifle-scope
or
Schmidt & Bender 8x56 Illuminated 30mm LM L3 Rifle Scope, illuminated for £548.95
A Mk V even. The nomenclature of British small arms was changed and updated on 31st May 1926, List of change announcements ss A1635 -A1690. Whilst the Mk III and Mk III* we're redesignated Rifle No. 1 Mk III and Rifle No. 1 Mk III* the Mk V was not so redesignated, probably because it was only a trials weapon and by that time had been superseded.
I would get out more often but ...