Sinden Feed and Seed seems to be a pretty good looking Ontario farming supplier. Which is sells some good stuff, but shipping is a killer to Scotland. Also, I'm not sure how it would actually integrate.Sinden Feed and Seed will only be cool when you can plug into actual consoles with minimal thinkering. I have used neither but honestly I'm gravitating more towards the low-costness of GUN4IR if the objective is using it for emulation only. In fact I have all the parts, I'm just too lazy to assemble it for once lol.
ChuChuFlamingo is not wrong.