No need to get upset about technicalities that worked, there was so many of those that did not

Schematics of Spitfire IX fuel system, long range (
picture) - two rear fuselage tanks, combined 66 or 74 imp gals (no measly 29 or 30 imp gals, like it was used on the Spit V sometimes in the Med), depending on rear fuselage layout. Keen eye will notice that Spitfire IX can acquire the lower front tank with 48 gals, just like it started with Spit VII. We can also expect that SPitfire VII/VIII will add a bit more range/radius due to the greater internal fuel carried already.
This is what the tests revealed, date of the doc 7th September 1944:
800 conversion sets are listed as ordered by same date, sets including rear fuselage tanks, as well as lower front tank with increased capacity.
Typhoon as an escort does need to be fed in bits and pieces, but in strength.
The reason I've stated that De Havilland with Hornet connected the dots is that it used the right engine (unlike Whirlwind, Fw 187 or Ro.57) with top-notch installation, installed it on the aircraft of the right size (unlike Bf 110, Beaufighter, Welkin), while using the reasonably thin wing (unlike 110, Beau, Welkin). I've covered the thing that Hornet of 1943 (if it is produced) will not be using Merlin 130s, as well as that turn of speed of 460-470+ mph will not be there.