Well, the
retail price for the AXY/PVF-2 Activator package (with pan, filter and Q switch) appears to be 1150 USD.
If you want the original Spoiler package (with a pick-up switch, filter with Q, and one pre-amp per p/u) it's probably going to cost more.
It looks to be in nice condition, but you'll need to find some second-hand electronics if you want a bargain price for this vintage (late 80s, early 90s?).