The HDI-45 to Macintosh Video adapter is not all that uncommon. I have one for my 6100, which has a DOS card in it. I also have a Mac-VGA adapter I use with it and an old CRT VGA monitor. It's a nice enough computer, at least compared to my LC II. It's not particularly practical, but just steal a HD from another Mac. I tried my LC II's drive in the 6100 and it worked just fine despite being only 80MB. I'd vote for soldering or other wise attaching inside the computer for a native macintosh video connector (DA-15, I guess).