Thanks. I can see right now that paying 3.5 times the price for the genuine Volvo sender might be money well spent. If I can get the car running that may be an investment in the intermediate future. If they are still available by that time.

Another piece of shade tree ingenuity that I hope works, was abandon the copper strip that is used for grounding, mainly because there is no way to fit it up to the new sending unit. I grounded it instead to the fuel return tube using a stainless steel bolt, nut and two washers,one on either side of the wire, and attached at the screw that attaches the plastic base cup to the metal flange on the tube. I didn't see any other way to do this. I tried to find some other way to do it but there was none, no way to make it fit. I just hope I get a ground that is good enough.

Also many thanks for the advice on the injectors. They are for sure from a Volvo 240. I'm going to try to make the injectors work, if not I see them in cheap aftermarket that will work until and if I can find something better. I need to get the car running and roadworthy first and then get it right.