Warranties - specifically Warranty Direct and AA Gold

[OllyHill]

Afternoon,

Looking to get back in to a Porsche next year and was after opinions on the warranties offered by Warranty Direct and the AA Gold Warranty.
I know the best option is to have an OPC warranty but the cars I would be looking at are approaching being 10 years old and I will probably buy outside the OPC Network.
I've tried the search function and found differing opinions. Some people seem happy with these warranties and the fact that both seem to cover possible problems such as bores and the IMS, but others say they aren't worth the paper they are written on.
The factor that concerns me is that both cover the cars against 'sudden breakdown' - which it wouldn't be with bore scoring would it? Just worried that they would manage to avoid paying in that circumstance. Has anyone had much experience with after market warranties?

I've had 2 Boxsters in the past and never had an issue with either of them, but the more research I've done the more engine issues there seem to be with these cars.

I've had a good read of some of the maintenance plans on here but I live way down in Cornwall, so a long long way from the garages that run these plans.

Any help or opinions would be great!

[OllyHill]

I suppose putting some money to one side each year is an option - but then if the engine goes in year 2 there's still going to be a big bill for a rebuild?
Is it still under 10k for a full rebuild or much over?