I assume you have holes where the bottom part used to screw in. If so, he likely sawed off the tubes to make it shorter. If true, that doesn't bode well for just putting it back together.
As an aside, my unit has an extension that hangs onto the last rung, and adds a couple feet of length when I want to climb up there. One of those might give you what you want, or at least make it better. There are motorhome wrecking yards, and I doubt such are in high demand.
2005 Winnebago Sightseer 29R Class A
8.1 Workhorse - GM 4 speed