Yeah. From what I've read, such hacks done with old, contemporary hard drives proved to be too much for the already overtaxed analog board/PSU, which is probably why they're somewhat rare (I suspect this is probably because most people found it simpler to upgrade to a proper Plus, whether by buying a whole new machine, or getting the logic board-hard drive-rear bucket upgrade kit).

With the SCSI2SD, though, it shouldn't be a problem since the power draw from it would be miniscule in comparison. Especially if it can be bus powered, which would make it a very clean and completely reversible enhancement (save for the extra SCSI connector, perhaps).

I do wish I could come see it before you sell it. Do you think you'll wait a couple weeks? I'll be out on summer vacation in about 1 1/2 weeks, and so might have an opportunity to come by.

c