Hi fanool, and a warm welcome to the forum.
Its always great to welcome another Scott Bonnar owner....
From my observations your machine is a late model....2 piece rear roller, 2 rail engine deck and vertical chain case screws. It may have been assembled by Rover as a Rover-Scott Bonnar, as I don't see the ID Plate riveted to the rear rail.
I see also that the front rail has suffered a fracture at some point and has been welded.
All parts are available and the clutch cable is an easy fix. The catcher seems to be in reasonable nick for its age and could be repaired and repainted. This would keep your machine original in the chassis side of things...(I too have replaced the Briggs with a Honda)
They are quite expensive to replace and hard to get for the 20" machine ....$200+
The cylinder reel looks in great condition and has plenty of meat on the blades.
It seems to have been repainted at some stage....the reel was originally orange; (I powder-coated mine "Signal Red" as I like the colour). You may consider sometime in the future to give it a complete paint job, it would do wonders for your machine and allow you to give it a thorough inspection at the same time.
Re: Facebook.....I personally don't use it....I believe it has privacy issues.
We do, however, encourage our members to post here at OutdoorKing, as it helps build a useful archive that can help new members down the track answer their queries.
Once again fanool,
