Checked in Orchidwiz... no Baker sheet on this one. That's going to be the case for relatively-recently described species... this one was first described in 1982, it got moved to a different genus, Echinosepala in 2007 by the same taxonomist (Luer) . So it's really recent. And of course, after it was discovered, more time elapsed for it to be cultivated in a nursery to be available to buy. IOSPE has it listed as Echinosepala shuarii (not cross referenced, even. I got the cross-reference from Orchidwiz) and that's where the elevation and habitat data are. So... just not a whole lot of data on this one. (Any data that do exist no doubt were accumulated after Baker did his work, probably after he died, and there's just not much at all)
There are new species still being discovered. All the more reason to do all we can to conserve those habitats... or we may lose species before we even know that they exist. (A plug for
Orchid Conservation Alliance, an organization that raises money to buy land for preserves in ecological hotspots)
If S/H lets you meet it's cultural needs, that's probably the way to go. Then you can stake, or let it flop if it really wants to be pendant. (Mounting would no doubt be better to mimic the way it grows in nature, but you don't live in a wet Ecuadoran forest... one has to make compromises...)
Just an additional note... I think I did guess right on its temperature, etc... I looked it up on the Ecuagenera website (as Echinosepala shuarii), and it's listed as Intermediate/Warm, medium light, high humidity.