For some reason, I was unable to add pics to an album or create a new one, so finally got back to it and uploaded the rest of the pics to Imgur and here is the end of the job.
Severely shortened and rewelded collector and flange.
New mount tab welded on to existing modified bracket.
Semi finished product on the welder ready for the heat shield.
Milling the inner and outer radii on the stainless steel heatshield mounting blocks.
Drilling and tapping the mounting blocks