I have many of these sets of Tomato/ Vegetable/Tree Seed Starter Cone-tainer trays for sale on ebay for $34 per tray plus shipping. The SC10 version are taller and more suited for starting tree seedlings and the SC7 version are shorter and better for vegetable seedlings. They really are a great and compact way of starting seedlings but I've just found that they don't work the best for me in my extremely dry Texas climate. If you're interested you can look at the ebay links below for more information:
Thanks for the purchase. They are nice containers and I think you'll like them... I just checked and we just sold the last 5 of the SC10 last night (4 to you and one to another person). We still have a lot of SC7 left though. Just let me know if that would be of interest to you and I'll check what we could do as far as discounts if you were interested in quite a few of them. From my experience, the SC7 would work for tree seedlings that don't have a serious tap root (i.e. pecans, mesquite etc...).
Companion Planting Guide by World Permaculture Association