Camping at electric only sites.

[Willie & Bev]

We have some parks that only have electric at the site. There is water available and a dump station. I've been thinking of putting a tank in the truck bed for fresh water with a pump to transfer to the TT. I also would like to put a gray/black tank with a marcerator pump in the truck bed to dump if necessary.
I really don't want to move the trailer to dump or refill the fresh water tank while camping.

Anyone ever done this or have any recommendations?

Thanks,
Willie