I've mostly been messing around with that Docking Station for the last week. Will probably put more details into my build thread, but basically I got both NEC Versa (40EC and M/75) running off of it with SoundBlaster and Ethernet.....still got a lot of work to do. Put in a SoundBlaster Pro 2.0 and a SMC 8416 EtherCard EZ. Trouble free in DOS but Windows is making me want to drop back to FreeDOS on those again....after all, they did make a P/75 version of the same exact laptop (Pentium 75, it was the last version ot use the cases the 486s used)....and the dock connector matches the 4000 series so that may be an option as well (I have a couple I have my eyes on ATM). I also upgraded to Links 2.21 and downloaded a 375MB file using the M/75 - took it about an hour it looks like over wired ethernet. Kind of insane a 486 can do that when you think about it....then there was WinRar unzipping that thing (!!!)..... this is like an old IDI Diesel F-250 pickup of laptop computers......you just hammer on it and hammer on it and it still gets you through - it might not be fast, it might not be "sensible"....but it will get you there.
May have found a few suitable touch panels to try on the M/75 on E-bay, one is only $33, but I have two that are over $100 that I'm handling like I did the M/75 and the docking station - just putting a watch on it on e-bay, and then waiting for the price to drop (or for it to dissappear). Also going to bump up the RAM (40MB), and get it a proper Floppy Drive....speaking of, having a real struggle with the Dock CD-ROM in Windows 98 SE and Windows For Workgroups.....works great under DOS but hangs/locks up in Windows for some reason. It's an early NEC CR-560 IDE drive.....go figure. I'm guessing a conflict with the IDE controller on the Laptop possibly.
Also made the wife laugh mocking the Guardian while playing Ultima VII on the M75. "Avatar....know that this here monkey man in the sky will tell you to go fight an evil corrupt politician disguised as Batlin in the local church whose carrying out ritualistic killings befitting of a Ghost Concert"....or somesuch....it was in the moment....