Going on vacation with this bad boy

Going on vacation with this bike in 2 weeks, only using it and public transport on a 400miles trip. It’s a 1974 folding bicycle made in the former GDR that we’ve tuned up a little by putting in a SRAM T3 IGH. After everything breaking in order recently and me replacing/fixing literally everything from the bottom bracket, over the chain to the cables and bearings, I think it’s now fit for the job and rides as good as it can be. (Actually better than new, as they were originally single speed bikes with one very large gear)