Paul,
I originally looked at the Toko & saw that it went to a maximum of 320 deg. F. (160 C.) I thought I wanted the capability to go to a full 350 deg., so I got a wild hair & made my own. It turns out that the T-14 is recommended by Oratex, & 320 is plenty. The only thing I wish either one of them had is a Teflon coated base.
I gave the iron to a friend before I bought the Toko, knowing I could always build another if I wanted to. And people wonder why it's taking so long to build my Kitfox!