Which Single Speed conversion kit is best for SRAM XD freehub?

Wheels Manufacturing, IMHO, seems to be the most elegant and engineered solution. Of course, it's the most expensive at $131:

https://wheelsmfg.com/collections/single-speed/products/xd-hub-single-speed-conversion-kit-solo-xd?variant=53178207994024

Problem Solvers has the "Zinger" at a more modest $79.99 (but doesn't seem quiet as elegant/adjustable):

https://problemsolversbike.com/products/zinger-single-speed-conversion-kit-for-sram-xd

Is there a third horse in this race I should consider?

What say you?

I'm using a wheelset built with Hope hubs so replacing the XD with a Shimano is about the same cost as the more costly Wheels Manufacturing conversion kit so I figure despite cost I may as well stay with XD.