I have one in the UK, but not sure if they ship outside the UK. Also not sure about the seedling trays, they do some tiny pots and pestisides I believe.
N.B. The same guy has nursary as well, he just keeps it as two seperate businesses. He also does sometime have things not on his website. I've rung him before about things I needed and he could supply them, just didn't usually though the website.