since the Coleman is not a Forest River product, i suggest you check with the manufacturer of your trailer.
maybe they can supply what you want, from different models that they make, with what you want.
from what i know, Coleman TT's are made by Thor Industries, a competitor of Forest River. the Coleman line is a twin of one of their other brands.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC