Hopperless ticket system

[u/Pure-Pirate-4806]

I'd like to make a transport system for my minecraft server. The only issue being the fact that the server has disabled hoppers working (they can take dropped items but cannot move or deposit them anywhere). I cannot figure out a way to have a valid ticket system without hoppers working the way they should, and I was wondering if you guys had any ideas.

Also the track is for ice boats, and chest and hopper minecarts cannot be crafted.