For wood on the way up, try Lincolnshire woodcraft, locate Stamford on the edge of Burghley Estate run by Robin Storey (AKA Robbing Bastard in the trade as hes not cheap!), just to the west Mike Cawthorne, trading as MAC timbers, fascinating woodyard with some great domestic timbers including Bog Oak. Finally at your destination in the DOncaster locality phone Martin Pigeon, a RPT turner who makes a living selling wood and he has some great stuff at really good prices. Can be a grumpy git but hes a straight forward guy in the flesh.
Register of Professional Turners » Martin Pidgen. If you've got the time pop in and see Tony Isles of Ashley Isles, call first,
Contact us/Find us (Lincolnshire), great tools, best in the country in my opinion but everyone has there favourites but they will be about 25% cheaper from their exhibition stock at their offices (all tools made in the UK). Dont know how far off your beaten track Chapel en le Frith is but go see Kirk at Exotic Hardwoods UK, he has some tremendour Redheart, Coobolo and camatillo and soome relatively cheap Amboyna.
And dont forget Alex, you have one of the best exotic timber merchants in the country on your doorstep, go see Bob and Hamish at Timberline, you'll come out broke I can assure you!