Haha. I completely forgot about this. In fact it's how I read the whole series. I had picked a few up a few issues here and there over the years but never the whole thing.
Yes...all of this is correct. I initially thought about going into the IDA background but didn't have time. I'm glad you did. I ready only a handful of Rom comics and while I enjoyed them at the time, I suspect they're like a lot of stuff that I enjoyed once upon a time - I probably wouldn't like it now. That said, I'd probably pick up a first volume omnibus if they ever did collect it.
By the way, I heard that when they reprinted some of the pre-300 Hulk (I think it was issue # 296 that Rom was in), they blacked out the character due to the copyright. I've never actually seen it though but it would make sense.