You're welcome, Sarah.
Two other 'resources' come to mind:
 At least on my computer, when I'm accessing this page, at the extreme right of the top tabs, if you click on the "More" one, you'll get some other links... and at the very bottom of that list, there's a list of camper manufacturers... click on Burro
, and you should go to this page:
I didn't look through the half-dozen or so threads that popped up, so I don't know if it'll help with the cushions issue, but there's some good Burro info there, at any rate.
 the U-Haul
camper Facebook page has always welcomed Burro owners as well, and it's still very active. Being Facebook, there's not the ongoing 'threads' like on this forum, but questions like yours about cushions come up regularly. Worth a shot.
I regularly visit both sites---this one & the Facebook one.
Best wishes on your Burro project, and 'happy camping'...