Yes you can convert your A and E manual awning to a 12 volt power awning with the Solera 12V Power RV Awning Conversion Kit # LC434724 that you referenced. This comes with everything needed to make the conversion and is perfectly compatible with your current awning and roller. view full answer...
As long as the width of the frame on your 2011 Forest River Cherokee 235B is between 22 and 68-1/2 inches (measured from outsides) the Adjustable Width Trailer Hitch Receiver for RVs # C13704 will fit and work well for you as it has a 5,000 lb trailer weight and 500 lb tongue weight capacity.
To add a 4-way what you would need is the part # 18252. This is a 72 inch long 4-way connector that comes with quick-disconnects so that it can easily be attached to a trailer's taillight circuits.... view full answer...