Buying used I'd suggest Yamaha, Sire, Ibanez, some Squier stuff
I bought back an Ibanez ATK700 last week that I sold 2 years ago. Really abused but 100% functional and a WICKED Musicman-esque bass. £120 and I could have got it cheaper but the seller was a work colleague. Nearly leaves enough in the budget for a used Ashdown ABM500, which can only be good...