You didn't mention your spectacular honey-coloured plywood ceiling which is a beautiful feature. I think that stained timber skirtings and architraves will detract from your ceiling, especially as they will be a different timber, colour and look to your ceiling. You have white walls, you have white windows, why would you introduce a contrasting timber element in the form of an architrave? The only answer is to paint the skirtings and architraves in the same colour as your wall, so that they "disappear". The concrete floor, the timber ceiling and the raked ceiling have enough visual interest and you don't need any more. Best of luck, Dr Retro of Dr Retro House Calls

some of the older carpenters and cabinetmakers will have the necessary traditional planes for cutting these profiles or you could have one made out of plaster, cement.or builders bog moulded out of a cast made from the remnants of the original board or try a high tech solution with a copy made with a 3D printer or two separate lengths of moulded timber attached together to approximately match the original but you'll need to research plaster works, restoration companies, specialist carpenters and tech colleges for a computer, woodworking or art student keen to try an interesting project but you may find that it's quicker and easier to replace the whole section with an unmatched section of plain skirting board or try stealing a section from somewhere else in the house where the skirting board is hidden behind a bed or lounge and replace the hidden area with the plain board...best of luck with your repairs

Thanks so much for the comments. It’s literally cutting & installing the skirting boards only (no architraves) and we are providing the boards already painted (5.4m lengths). It will be a clear run as it‘ll be right after the new floors are laid so no furniture around at all. Quite a lot of angle cuts though. Still reasonable? I suppose it comes down to peace of mind on a quality job or take a punt on a handyman (unfortunately don’t know any so would have to take a chance). Oh dear, wish the budget wasn’t so tight otherwise I wouldn’t hesitate.

Re stain them in the stain colour of your choice. The stain will add the moisture back in and they will look brand new.