Commercially made bike rack. Lippert Jack-it. Raises bikes above propane and battery locations.
https://www.etrailer.com/RV-and-Camp...SAAEgJ_P_D_BwE
https://www.lci1.com/jack-it
If you need a cargo rack up high like that Stromberg Carlson makes one.
https://www.etrailer.com/RV-Cargo/St...SABEgIoJfD_BwE
https://www.strombergcarlson.com/pro...-model-cc-255/
Both are made by parent company Lippert. I have not seen one that makes both bike and cargo rack together.
BTW putting the additional weight up front will change your loading of the trailer putting excessive tongue weight for the trailer load possibly making the trailer unstable at speed and out of balance.