I got pretty tired of of sanding back an area, and having it start rusting before I had done enough to justify getting out the spray gun, so today I got in a professional.
I was then able to get out the spray gun and get it primed.
Unfortunately it showed some more things that need replacing.... drats
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1942 Chevrolet C60L WO48 - (Workshop)
1944 F15A
1965 Workshop Platform Trailer, Binned ARN: 101-803
1967 Trailer, 1/2 ton AUST No 5 ARN: 154-748
1990 Perentie 6x6 ERV, ARN: 51-981