To put it in perspective, my first laptop was a Toshiba T1600 left over from outfitting a school library (these were already obsolete at the time so the kids who repaired the donated machines also got to keep one, 286, 3 color display) and I'd be totally fine lugging something of similar size.
Hmm... with the exception of the case it kind of looks like I could source components and end up with something I wouldn't hate using.