The Monza 24 is a rare boat, it came in two versions (SS & HX or X)..different deck configurations basically. They were well built, check it out and make sure transom, stringers etc have no rot etc. As for the TRS & BW trans...yes they are old school technology but are pretty bulletproof.
Cool boat ... good luck.
BTW- Sorry the one your looking at is the SS, the HX or X is the rarer of the two.
Here is a video of 24 HX / X from Puerto Rico...www.youtube.com/watch?v=ojAU3iOuiMg