I've been scouring eBay lately looking for a vintage Canon AE-1 for a photography project I have coming up in three weeks and my budget is strictly under $150 but honestly the prices are all over the place. I did some digging and found stuff like PriceBlink and Keepa but Keepa really seems built for Amazon and PriceBlink is just annoying me with random coupons I dont need. Im looking for something that actually tracks the price history on eBay specifically so I know if im getting ripped off or not. Are there any actual free extensions that work well for price tracking or maybe even auto-bidding that wont steal my login info?