I use a Seago round tail. It's a serious squeeze for 3 but OB gives more room than rowing. Quality is good and round tail maximises buoyancy and ease of folding.
If you cannot find what you want and could up your budget a bit, I would recommend a Water Tender 9.4.
Same sort of plastic as modern canoes, rather than GRP, so quite scratch and abrasion resistant and very light and stable. I have had one for two seasons now and am very happy with it.
A quick google comes up with a couple of UK suppliers. Mine arrived by courier within a day or so from somewhere in Norfolk iirc. No connection, just a happy customer.