I was just perusing the Zob site and noticed this, too... it's not exact, but the stemless perc looks to be fairly simple with less diffusion than the often seen gridded inline(s)...?:
Zob Glass has done it again! This is one of the pieces for 2017 and it features Zob's newest perc! This straight tube is approx. 18 inches tall and is made from 5mm thick glass. The pipe features the Escape Tunnel perc, hence the name El Chapo Bubbler. It's a glass "tunnel" to allow for...
zobglasspipes.com
It has the ice pinch the other one doesn't have or the large can base and if you don't want deal finding someone on IG etc, seeing as these appear to be made to order within a few weeks, you might want to get a quote from them to make one without a perc?
Honestly tho, I can't really imagine Nameless charging a whole lot more and you'll get exactly what you want and he seems like a decent enough dude to boot... you could probably get one even better than the Herbo... like with a screw cap, single, curved intake stem tube positioned for your needs and maybe even a threaded/capable mouthpiece...??
Oh, and the other one I posted is like $50 less on the Zob site... (I'm not a huge Brothers fan)