Good luck finding a bike or frame that works for you.

If you don't find something by early September there should be a vintage swap meet in East Van I think the week of labour day. There'll be an ad for in in craigslist I'm sure. I got my tiny Trek 520 frame there last year for $40. It's not high end but it's quite well made and doesn't weigh a ton. It's only a parking lot sized swap meet but it's fun. Good place to look for parts.