So far google is saying I might be able to not only check but update my collection with clrmame.
"Might" is strictly correct, I suppose. For example, if the name of a given ROM file has been changed, clrmamepro can detect that and rename it to be correct. However, being grounded in reality and subject to the laws of physics, clrmamepro cannot conjure any redumped or newly-dumped ROM files out of thin air, and since you're talking about upgrading from a paleolithic-era ROM set, I'd say the chances of clrmamepro being of much use to you is slim to none.