DrewE and accsys, thank you for your thoughts. they are appreciated. The MoHo is 40 ft with three slides. The building will be 51 ft long and 20 ft wide. We are putting in PVC lines large enough to fit the lines thru at a later date. Also, if we at some point have an issue with the lines, we can pull them out and re run them easier. The business side of the rv will be away from the water/power/ waste, so we will be laying them under the concrete. We are going to run only a 30 amp line because we don't plan on the rv to be used while parked. The utilities will be only an as needed item. IE; packing and unpacking and cleaning. We have had another MoHo for many years and because of our mild climate have never winterized it.
From the looks of the old one tho, we should have built this building years ago. The sun is very strong here in the Carolinas.
Thank you both so much for your replies. they were appreciated and if you think of something we have missed, please chime in.