Hi Downunder, and welcome to WIX!
An engineer I ain't...but two designs along in the Sydney Camm oeuvre from your favourite is my favourite, the Fury, so think I'll weigh in anyway...
Yeah, a scale version Tiffy would doubtless be far easier than a fullsize one; and scale Warbirds can still be quite impressive, viz. the Thunder Mustang, or the gorgeous 3/4-or-so Spitfire XIV now flying in Ontario. But if it's worth doing, it's worth doing all the way, I think.
Unfortunately there's next to no commonality between the Fury series and the Typhoon (the Tempest, in between, has more in common with the Fury but still not all that much). And all operational Tiffies were powered by the Sabre engine--which only survives in museums with none in running condition as far as I know. (There's a very impressive cutaway Sabre engine on show at CAvM in Ottawa). Sooo...you'd probably have to go the Marcel Jurca route and loft-out an "external replica"; said airframe would be powered by quite a different engine than the real Tiffy, perhaps an Allison like Bob DeFord's Jurca Spit or even a Ranger V12 like that 9/10 P-51B had way back when. Or...a turboprop! I was riding in an EMB120 Brasilia once, daydreaming a bit, and suddenly noticed that the shape of the engine cowl out on the wing (which enclosed a UACL PW120 turbine) was really quite strikingly like that of a Typhoon or Sabre-Tempest. What to do with the exhaust would be a challenge, though...! And of course she'd sound very wrong indeed. But whatever engine you hang on her, with that big fat high-lift wing I bet she'd be near-STOL and climb like crazy. (Anybody notice that about the Yagen Hurricane at Gennie last summer? Up like an elevator!)
A Tempest, on the other hand...with a little help from the Fury parts bin, and maybe an R3350 (or late-model Centaurus...or indeed one of the many ex-Fury Centauri, they've got to be somewhere)...now that ought to be doable. If John Marlin can do a homebuilt Reno racer from scratch that looks (deliberately) rather like the Martin Baker MB5--and incorporates Mustang parts--surely a "Tempury" could be conjured successfully...
Then there's the superbly mean-looking Griffon-Fury...aw, forget it...
Cheers
S. (hoping someone with some engineering knowledge also replies)