Here is a link to 2 MMICs on ebay: (sorry, just had chit to do and was
slow to search)

http://cgi.ebay.com/2-HP-MMIC-S-MSA-...temZ3201939363...

An extra would be nice, in case a catastrophic mistake occurs while
constructing the device.

The data shows 0Hz to GHz, that should be wideband enough! :-)

Regards,
JS

I wish I saw those earlier, I picked up these

http://cgi.ebay.com/ws/eBayISAPI.dll...MEWN:IT&ih=005

A bit pricier as they came in a pack of 5, but it was all I could find
at the time. Hopefully they will work? I also ordered a breadboard
and all of the other parts as well. It ended up costing a small
fortune (with my income). Hopefully it pans out.

-Chris