AFAIK, it's not a clone of anything. BSA developed an entirely new range after WW2 that was unique to itself, albeit using many tried and tested design features such as early models having a Mauser non-rotating external extractor and blade ejector.
These were developed from three separate length / sets of external dimensions of the 1950s designs to the 1960s CF2 common length and external dimensions model to reduce manufacturing costs. It was a 'long' length action that was adapted to take and feed a big range of cartridge lengths from 222 Rem up to the 30-06 and 7mm Rem Magnum.
The CFT was the single shot target version of this action with a solid bottom and the bolt-stop set for the 7.62/308 cartridge length with suitable 0.473" bolt face. I'm not certain, but assume that it shares the CF2's dimensions internally and externally to reduce costs - it would have made no sense to redesign it given the previous work simplifying the parent design. The trigger assembly is very different from the CF2's though and may have different external dimensions.
I'd have doubts if anybody ever made custom laminated stocks for either BSA CF, so you'd have to get a suitable semi-inletted long-action job and get the gunsmith to work from that, or commission the stock maker to inlet one specially to the CFT's receiver assembly. Neither option is a task that suppliers / gunsmiths fall over themselves to do these days.
The CGT stock is a good design if rather Plain-Jane. A friend who obtained one of these rifles at a bargain price some years ago had Hydrographics Ltd near York spray paint it matt silver then dip-coat a woodland Realtree camo pattern on top, then clear-laquer finish it. It transformed the rifle's appearance. Not all viewers appreciated the new look but I liked it and I'm pretty conservative on these matters.
