Haha, someone I know found a Hohner B2A in a "trash room" in their building or whatever you'd call 'em in english (the sort of place where people throw random shit, and the government's people come pick it up and sort it at their facilities) and it's working just fine! It's at my place right now and I'm guessing even that bass sounds better than pitch shifting a guitar
This is the B2A (not the one that was found though)
So if you're lucky, you might not even have to buy one! Keep your eyes open, hahaha