McClaren Type M Mk2. Looking for valves, guides

We're looking for valves, guides and possibly springs for our McClaren Type M 3 cylinder diesel. I know it's a long shot, but thought I'd ask the question.

Valves:  https://bguk.co.uk

I was in touch with them about a year ago with regard to them taking a larger valve and machining down to size using worn valve as a template. They seem to think it might be a feasible but I never pursued the option as I sold the engine.

Springs:  https://www.ashfield-springs.com/stock-springs

Again, if you have worn one to compare you might be in with a chance.

Thanks Paul, I'll check them out. We still have all the original valves and guides so should be able to get a match somewhere.