I tried one of the customized TXCOs on eBay, seemed like a reasonable chance at $20. Didn't work.
Frequency on my scope (200mhz scope) appeared correct, but the oscillator output was too low (9 mv p-p).
I tried to contact the vendor, but there was no response from them after a couple weeks.
I was able to get my money back though...
I'm currently experimenting (again) with a home-brew oven...