So this weekend I decided to remove the flange which holds the bulkhead on. The bulkhead was already removed so the easy bit was done. The approach was quite simply to angle grind the metal out as described on the Kiravans site shown below;
I can see why conversion companies charge so much to remove this but I will say that you do get into it. For nicking the bolt heads off use a thin blade…Some of the work in the gallery.
The most useful tool for getting out the panels and removing the trims without damaging them: https://www.ebay.co.uk/itm/9PCS-Car-Door-Trim-Panel-Dash-Removal-Pry-Tool-Upholstery-Tools-Clip-Plier-Kit/142891505148?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649