Yeah I agree that the significantly more than market value I've asked for will likely be the issue. Now I'm wondering if its even worth going for a agreed value policy, rather than a normal market value payout policy
Well it kinda depends on lots of things. PaceWard are decent insurers to deal with so well worth taking their advice over the phone I think maybe tomorrow. None of us on here know your personal insurance circumstances, like age, experience, claims history, and all the other stuff that you don't need to post up on here.
All I can say is that I insured my car with them originally for what I paid for it and have now upped the value in line with the market. All I am interested in is should the worst happen, can I get it repaired/replaced.
I would persevere and take their advice making sure you provide them with ALL your info on the car like mods, plans for it and that.