ever heard of using a ladder with your wife or child passing it to you while your on top of the ladder if you cannot carry it up while going up the ladder?
1. Why would there be an issue with someone assisting you in constructing a sukkah?
2. While a 10-tefachim-high sukkah is technically valid, is it really useable? Someone of average height could sit on the ground, but you couldn’t do most of the normal activities associated with “leisheiv basuccah” (dwelling in the sukkah), unless you’re accustomed to living in a house with a 10-tefachim-high ceiling.