Yeah that could be an option. I contemplated this method.

The only problem is that the hard drive could potentially get bad soon. Yours dead, mine's dead, all of techknight's are dead.

I know someone tried to swap the controller boards. Don't remember who but it didn't work. Apparently some controller boards can get bad as well?

If you want originality though, this is the best thing for your computer. 

I'm planning to use this Portable as my main System 6 machine. And with a boot time of less than 5 seconds with the SCSI2SD I can't resist 

It all depends on what you want to do with it.