I had just purchased a set of Integer ROMs from dorkbert when another set dropped on my lap for cheap (way less than half the going ebay rate). Anyway, I don't have a working keyboard now so can't go very far, but I did install the ROMs and power up. I have a couple of questions.
I have the Apple II User's Guide by Dave Finnegan here but I'm not clear on how exactly you load a bootable disk (or do you?) with an integer BASIC system, since it doesn't have the Autostart.
The other question is -- on most pictures of the Integer basic machines I've seen, the typical 'startup' screen is 3/4 of a screen full of question marks, followed by the monitor prompt. On mine, it is mostly but not all question marks. Sometimes there are other characters, like 7s, sprinkled in there. I can't type anything to test... but the random characters do change with each power up. Sometimes it is indeed all ?.