not wanting to p|ss on your fire or anything but "been there - done that".
Dizzy (on here) used to make these and sell via the forum and shows.
I also had a dabble a couple years back, you don't realise what you are tlkaing on! The looms for the dip beam only are a piece of pee to make up and flog, but they are kak, you really need a loom hat does both dip and main, which takes twice as long and you REALLY need to be charging more that £15 for these.
Then you go onto the looms that do do the inner spots as well! Although it is straight forward enough, you are talking at elast a couple of hours for each of these to be made up - if you have loads of free time then crack on!
Then you will get pestered by the folks that bought them and can't follow the instructions (no offence to anyone - but it happens!!).
There is a guy (mattie griffin) who has his own website selling these, they are highly rated!
Just a bit of background for you before you jump in!