Richards right to an extent if you looking to make bucks probably not a good idea but if your like me and love knowledge for its on sake and just doing it as a hobby then go for it
I have made two attempts with a little success and a lot of fun and satisfaction both times the issues were with getting proper media prepared as in right amount of growth hormones cultures grew callus tissue but failed to shoot contamination was a minor problem out of 20 baby food jars each try I lost 9 to contamination the first time and 7the second I was using an old aquarium on its side sprayed down with alcohol before use a training course would defiantly be a help but not absolutely necessary you can find all you need on line
check out Gabes home lab and consider he is a pro that has done this for a living
New homemade hood it dont got to be complicated! actually it might be better to try something easy first like carrot or cabbage naners are more difficult