Paul, the company was up for sale for years and I think the web address belonged to Nasher on here until recently. Since we are going back in time to the glorious days of the 2 stroke, the boat would have been classed by hp not weight. In there day Flatacraft were expensive and well put together, so 90 sounds good. The owner was Tony Lee-Elliot btw.
We cruised with one across the channel in 95 with 60 hp, little bit slow but made it okay. This looks a little OTT
Mark Bleaker who now works in Ocean Quay Southampton (Suzuki Dealer) might be able to help. He knew Tony well and borrowed a Flatacraft 6 for Round Scotland in 92 called Miami Vice. This poor rib had been abused for years before he got her but she still carried on even having the gelcoat replaced. Wasn't helped by the engine a 260 hp V8 Yamaha petrol stern drive which gave 60 mph if you could keep it in the water.