TRS-80 Model I Computers

Speaking of Model 1's.... I just bought one (for $45), keyboard/cpu only. It's an original Model 1 (no keypad) but has had a Level II upgrade. I have two issues with it though. First, there's a problem with the video. I know the monitor is fine, because I have another cpu unit (Model 1 Level II) and that one works fine with the same monitor. But on the new cpu, the video has "issues". It's "out of focus" and drifts on the monitor. I have to adjust the H-hold and V-hold, and I can get a relatively stable image, but it's offset to the left of the screen such that about 10 characters are clipped, for example I can't see all of the text from the "READY" prompt. So, how do I go about fixing it? hehe. Ok, big question I guess. Lets assume I have no previous experience fixing circuit boards, although I did solder up my share of ICs and logic gates in college. I'm not in a hurry so if I have to become proficient in electronics to make this happen, I will take the time, read the books, etc. Anyone got a reading list to get me from zero-to-McGyvering a circuit board video fix? (I sense a new long-term hobby starting!) Second, how do I go about restoring the Level I Basic ROM? It looks like the original ROMs are not in this machine so I would have to find one or more likely figure out how to burn an EPROM and all that...so how do I get a hold of a ROM image for one, are there references that help me do this, etc? Thanks in advance! Rob