Im loving the Simons stuff!!
As an aside and for information of those reading who may want stock type , Volvo sells the new ones for most all older models , Berry Motor Group has some in stock at all times and good prices plus 2YR warranty via Volvo Australia.
As a pipe fitter tig welder I’d love to make them too but I’m not getting them made for myself yet so I might ask my work mate , a perfectionist like I used to be before aches and pain hit. (I’ve got plans for an inlet manifold onto the cut up Redblock inlet I have sat at work too and old mate is brilliant ally welder…..)