Only looking for a few, so must be somewhere that doesnt want only bulk buys or trade only.

Thanks for any suggestions

not sure where you are but you could try haworths builders merchants on cross lane , off leasowe road

Try corfe stone in Hooton i think they do reclaimed as well.

Firwoods in Pasture Road Moreton just a bit past Cadbury's on way to shore have a lot of those sort of slabs.