I was told when I bought my tractors years ago that blanks would have to come from china , of course they can be cut here. but that might have changed it has been awhile. I would say look at the sponsors of the site but they are not listed anymore, I think keno tractors might be who you need to contact, maybe?
I have found the keys on http://www.aliexpress.com. They have several different styles and the price is not bad. I compared the shape of my key to the displayer items and it works like the old one. They also have injection pumps, hydraulic pumps, starters, and alternators. I bought an exhaust manifold for my Farm pro 2425 for $58.00 with shipping included and it came in 16 days.