No idea where you live Lee, but if near Preston I'd seriously consider this old Aquavac on ebay
I have a couple, one in each garage, wet and dry, and seem to go on for ever, albeit noisily.
I bought mine prior to buying my previous house, so early 80s and picked up another when my friend closed down his Landrover workshop, where it was in use commercially from late 80s till I guess 2010
Both are battered, but still work well.
I use one of them coupled up to my small blast cabinet, running via a small cast alloy centrifugal cleaner, also off ebay, which spins out the used abrasive quite effectively. You would need a larger size for wood chips, unless it was just from a saw or router bench.
Bill