HW-8 to rework or not?

I purchased an HW-8 in April 2024.  By all accounts it is stock with no mods, just the way I wanted it.  I did one minor repair to the meter circuit (cold solder joint), but have left well enough alone.  It is fun to operate and I have made many contacts with it.  However, there is no doubt it could use some realignment and who knows what else.  With old parts that may break and are irreplaceable is it worth the risk?  I am not sure if it would be a good idea, but armed with a retired accountants brain, a digital volt meter and a soldering iron I just might be crazy enough to jump in.  If there is an HW-8 for sale on eBay for parts only the results will be obvious.