I had picked the Gloster twin because of its likeness to the rather effective Hs-129, which was underpowered, whereas the Gloster would not be. I picked the Molins gun because it would fit the airframe, and was effective, from a fairly great range. The Vickers "S" gun/ Hurricane IID combination had proven effective in attack/kill ratio against German tanks up to, but not including improved PzIV. It also suffered a high loss ratio due to the "in your face" nature of the gun's range limitations, having a vast projectile weight with low muzzle velocity. The conversion from Taurus to P&W engine should have been possible, since it was performed on Bristol Beaufort from MkI to MkII. It had been proposed at some time when there was a shortage of these engines, but did not remain such for long, since various auto engine factories converted to production. Also, the Gloster is a taildragger and wouldn't have a problem such as the Warthog possessed of having to shift the nosegear to one side to accommodate the weapon. I've been told that Gloster had far more production capacity than it had, several times, so manufacturing the beast shouldn't be an obstacle.