You should look at a different option. Your craft should not have initial friction to overcome that would be needing a 'physical push'. Perhaps the skirt needs work. A very thin plastic is fine, I use a grocery shopping bag. The skirt needs to be uniform, should inflate and hold air with only a small amount of air leaking out which is what reduces the friction.
Make sure the lifting fan has high static pressure (large fan blades), try to reduce the air that escapes to to the top, (ducted or cowl use).