Thanks for the link. I didn’t know it is available at Mountain Electronics.
I have ordered it from myled.com a few days ago. It is good that there is a space for a 17mm driver. I will use a driver as discussed in comfychair-inspired quick+cheap+lazy single-sided 17DD FET-driver (poor man's nanjg92) with Toykeeper’s Ferrero_Rocher firmware and an XM L2. Well, at least that is the plan 
.