Hi rollo, that deck looks in good nick, unfortunately the drive components not as good.
I have never seen a drive shaft come directly out the side of a motor before. What happened to the pulley attached? It looks like it has been bashed by a frustrated would be repairer. It looks like a straightforward easy to get at self propel system.
I hope you can get it going as it looks like an impressive mower once going.

Ahh, if only victa had kept producing the thumblatch catcher series, they would be in better shape today!