I searched this forum in the past when I was going to do my LED lighting upgrade to our 2006 17b. I thought I would post my success and results for my fellow Escape Trailer enthusiasts who may be looking to do the same upgrades to their trailer. I'll link below what I bought.
More pictures to come when I think about it. I am very happy with upgraded lights, little or no heat from them and they are bright, bright, bright. I even ended up replacing my cargo lights and reverse lights in my truck with LEDs and they light up the campground when I arrive after dark.
The interior dome lights and the exterior running lights are all the same bulb. 194 LED wedge is what I searched.
The break lights are 1157 bulbs
The outdoor dome light is a 1156 bulb
I had to test each one, as there is only one correct way to insert the bulb. I found no way to distinguish this and had a 50/50 chance of getting it right when I installed them.
Pics -Before and After below