@starbreaker
So, I found a couple likely candidates, one has a 128G sdd, the other a 520G @7200rpm, otherwise identical. Not sure about the speed trade-off vs storage.
@starbreaker
Hadn't thought about ssd impact on battery life. That's probably the kicker. Offloading is trivial, esp with a thumb drive as big as the ssd. Time to start convincing my partner it's a viable expenditure.