Now, due to bad luck, it's been forced upon me.
Whilst hedge cutting yesterday, I found a 'foreign body' embedded within the verge, that split the front tyre and took a piece out of the back tyre. (and, of course, the hedge cutter is still mounted).
YES! Both tyres.

Fronts are 6.00 x 19
Rears are 12.4 x 36
Can anyone advise of a 'low priced' source of supply, preferably around the west midlands area, for tyres and tubes?
Also, any idea of prices?
Thanks,
Mike