In case you don't have any luck finding a trade you can get good germination from the seeds inside berries sold in places like bulk barn.

Mike

If you have a Chinese supermarket nearby, you can find cuttings about a foot long, tied together in little bundles of about 20 cuttings. They're meant for eating but root well nonetheless. It may be a bit late in the season, but they're usually in stock until October. They go for about $3 a pound. If you can't find any, let me know and I can try to look for some for you.

I have them and a few other things on your want list. I sent you an email :-)

I'd like to trade for your stinging nettle seeds. Also would like the giant atlantic pumpkin seeds.