Just get ht G8 copies from AE. Many have used them here.
Got em a while back, not bad but definitely a bit chintzy. But at $10/pop not hard to replace, I guess.
Solestar is maybe not custom but it works great with it's construction,
Funnily enough, I also tried these. Felt decent when I first put em on but absolutely brutalized my arches on longer rides. I think this style of construction with a longer, lower arch would work pretty well for me, but alas.