Well, it appears you've selected 3 good manufacturers. While we are 5th wheel owners our last 2 RVs have been Forest River made. We have been very happy with the quality of their products and especially with their service when ordering parts.
I also like your choice of a rear living floor plan. I think you'll find that it is more efficient as it breaks up the bedroom/living room space making them both more private.
2018 Chevy 2500HD Duramax - 2015 Cedar Creek Silverback 29RE
16K Huskey EZ Roller Hitch - EU2000i Honda Generator