You need to use foam or polystyrene to lift the boot carpet but it's worth it.I 've had to use the spare a couple of times and it saves using the foam, or using a get you home spare governed to 50 mph
If you can afford to buy 5 of the 9.5J width, fit 275s on the front to match the rear. With the extra wheel you can have a full size spare in the trunk. Apologies to those that are reading this for the second time I posted it last week. Make a square timber frame to lift the boot carpet...sorted...
If you want a 'square' set up go for 275/40-19 tyres front and rear on 9.5J rims. Works fine on mine, lowered on Eibach springs, 20 offset flush with fenders, no rubbing whatsoever. This allows for a full size spare in the trunk