I can send you some of my leftover seeds from last year's winter sowing. Just for your info, marijuana is very difficult to start from seed. The preferred methods of propagating it is from cuttings or tissue culture. In fact, there are several items on your list that are challenging to grow in WA. Basil, tomatoes, cucumbers, peppers, corn and watermelon all need to be started indoors weeks before they can be planted outside. Our growing season is too short for all except the basil to produce crops, so the sooner you can get them planted, the better. Unfortunately, I don't have any of those seeds to send you, so I hope someone else can. If you can come to Olympia, there is a Seed Exchange in the Garage behind the Hostel at 323 Milroy NW, and they are open Saturdays and Sundays from 5PM to 7 PM. Bring your own envelopes or containers to put the seeds in.