The comment that I would add is that you may eventually change to a bigger heavier RV. The concrete pad that we originally poured beside the house worked well fo years until we bought a bigger heavier motorhome. Tha started breaking the pad. Of couse we solved that by selling the house and moving full time in the motorhome.
TeamFoxy ~ Traveling North America
2011 Coachmen Mirada 32DS
2017 Chevy Equinox in tow.