I got a Vintage Baracuta Jacket Large G9 Blue Flannel Lined Bomber Harrington for $105 with free delivery and returns. I've been eyeing these Harringtons for a while and my patience paid off. Prior to buying, I chatted with Baracuta's online support to confirm the sizing I should target, so wish me luck.
BTW, there are a lot of very nice tweed sport coats on Ebay right now for under $300 from brands like Canali, YSL, Brooks Bros., etc.