This is all very true.

Another other option is to be ruthless and replace the main, top lever and sear springs, pins and swivels, etc. soften, re-harden and re-colour the action, new barrels and stock. Definitely a long-term and expensive project... but resulting in a 'new' re-built rifle on a classic action at lower cost than a newly built rifle on a new action (also saving on VAT !), but admittedly at greater cost than the 'value' of a restored rifle.

I think I have a good handle on action and stock work costs and who could do it, but its the barrels and regulation that I am not sure of and probably the killer...