I know very little about the Escape 15, other then there is a real nice one for sale
right now on this site.
No shower though.
Neither will you find a shower in an old Trillium
4500. I have two of those. The models with a bathroom have generous proportions that stretch all the way accross the front of the trailer, but no shower. I have plans to rip out the front gaucho, (couch that turns into a bunk bed) on one of mine, and put in the type of bathroom that Trilliium RV puts into their new Trillium 4500's. Kinda the same as the new front bathrooms in all small fibreglass trailers. About 2/3 bathroom, (with a shower), and 1/3 closet. Take a look at TrilliumRV.com for the floor plans.