If any mfr put all this great stuff in their RV from the factory, what would we have to talk about? Mods are a very big part of the customization many of us do. LOL.
Don't be afraid to customize your rig. Make it exactly what YOU want it to be and suit YOUR needs.
Nice thing about it, in the price range you purchased, there aren't many mods out of your financial reach- even if you want to pay someone else to do it for you.
Just remember, you gotta show us pics or tell us about your results of your favorite ones! It's how we all learn and share :C