1963 C50 Clutch issues?

[MrBeast]

Howdy guys!

I am currently looking at buying a 1963 C50 that I found for sale, the problem is that it has a non functioning clutch. Owner says that he replaced the Master Cylinder, apparently these trucks had a combined cylinder for the clutch and brakes?

He says he thinks the slave cylinder is bad, it sounds like he is tired of messing with it, but it is not a system I have ever messed with.

I am wondering if parts for it are available and if there are any upgrades that are recommended? Ideally I would like to just put a hydraboost on it with a separate slave cylinder, not sure if anyone makes off the shelf parts that can do this or if I would have to fabricate it?

The truck is really clean, almost no rust and just a couple of dents, but it is also 500 miles away from me which complicates things as it is a bit larger than any trailer I have access to (which is why I am looking at getting it to build a tow rig)

Any insight here would be greatly appreciated.