Hiring e-bikes

We have a problem at present. We want to finish our new e-book version of "Rhine 2"covering the Rhine from Basel to Rotterdam. Our printed version is now both out of date and print, but does still attract orders via older versions of the website (www.bergstrassebikebooks.com) which can be found on mirror sites in the Internet. We do have the upstream version "Following the Rhine gently upstream Rotterdam to Basel, a Cycle Tourist’s Guide" available from Smashwords and Amazon, which will be updated this winter.
The problem is that we need to cycle about 280km across the Netherlands from the German border to the Hook of Holland. We cannot do this until the middle of November.  In the Netherlands November means gales from the west, the way we want to go. To be sensible, we need an e-bike each. We can hire them, but of course when we are done we will need to return the bikes. This means a train journey with changes. Do the operators on the Dutch railways offer accompanied transport of e-bikes? Wouldn't it be wonderful if we could hire a bike in Arnhem or Nijmegen and drop it off in Rotterdam? It is possible to hire bikes in cities in Switzerland and drop them off elsewhere in Switzerland. We have two possible cures:

• We could persuade Batavus or Gazelle to lend us a bike each for the publicity.
• We could buy a couple of Dutch e-bikes from the Gazelle Outlet Shop. These bikes in the Netherlands are cheaper than in Germany. The problem then is our local bike shop owner would probably scrag us and rightly so.