Pop top on Sprinter 170 4x4?

[Tookmyhandle]

All,
Sorry not super experienced posting here. Hope I’m posting in correct forum. There is currently a build out there (170 4x4) with a Pop top that hinges at the rear end, not parallel like SMB/CoCampers. It’s a fancy build in the last year, I thought it was Momentum Vans but can’t find the van. I thought I had it saved but embarrassingly must not have.
Anyone happen to know the van? I’m pulling my hair out to relocate the company/build/details and coming up short. Hardly any 170’s w/ a pop top. Pretty sure it was a dark color van, maybe dark Green.
Many thanks,
Will

[Tookmyhandle]

OOps. Self fix. Finally found it. Sorry for the bother.
https://www.benchmarkvehicles.com/leithaus

Probably the slickest Westfalia style pop top I’ve seen esp on a 170 which is rare. Looks nicely aero and well fitted.
What are the big drawbacks of Pop Top on 170?? I know very few outfitters will do it, including SMB. Too much structural compromise to the whole vehicle??
Many thanks
Will