So ive just bought a set of component speakers but im having trouble finding a suitable place to put my crossovers... Any ideas?

Mount it with double-sided trim tape/screw it on the underside of the metal part of the pull-to handle or in a cavity on the door itself.
Just an idea, I haven't tried it myself as my component speakers have passive crossovers.

Or if you want somewhere inside, theres plenty of room above the fuse box and on the passenger side, around the same area. I once had it come out on a seriously corrugated road, but years later, thats the last time I had to deal with it.