Timing belt parts interchangability?

[SoCal LS-L]

I found only one thread on this so I have a couple questions.....

For the camshaft pulley, is there another subaru engine with the same size??
Will a timing belt from a 4-cylinder DOHC work on the SVX??
Are any of the smooth idler pulleys the same on another subaru engine??

The reason I ask is that we have a Pick-N-Pull here and I dont think ill have much luck finding an SVX, but im sure they have other subies. If any of these parts are compatible, what year and model would they be?? Im low on funds so any help with identifying the suitable replacements I could find there would be GREATLY appreciated (pick-n-pull is a DIY yard, and they are very inexpensive, which is good)