Just got back into scooby ownership and revived this one from the dead! However it never came with a spare wheel which I presume is due to the fact it has the wide arch kit and spacers so the original spare won't fit?
It has the standard 4 pot brakes. The front spacers measure 32mm. Current wheels are 18 x 9.5 ET23.

 

Why wouldn’t a standard space saver spare fit?,you would just need to take the spacer off...