nice job on the unit, I like your wheels to move it around when not on the tractor, and your PTO shaft storage,
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I just wire brush off the burnt areas (welded areas) where the modifications took place and repaint, I like things looking some what professional when there "completed" there is usually a few weeks in there that testing is taking place, tho,
the thing is unless one spends mega dollars for paint it all looks weathered in a year or so any way, and I prefer weather faded paint over a rust bucket, look,