You might be amazed at the result. Feel free to email me if you like and i will send them to you - free. By the way, I forgot to add, you only have to buy seeds once. Convenctional potting mix is useless in my opinion, as it is too course. I just use normal garden soil, or sow them straight into the garden beds when the cold weather has past.
Seed saving is easy.
I save a new lot every couple of years to keep them viable.