You'd be better off skipping the csv and going to a conventional tank. You don't need a csv on a jet pump.
I agree you could fine tune a pressure switch to make a jet pump work like it has a CSV controlling it. But it is hard to set a pressure switch for a jet pump to not cycle at 1-2 GPM, and have any margin for error. The cut-off setting of the pressure switch must be very close to the max pressure the pump can build. If the water level drops a little, the pumps wears a tiny amount, or anything else causes the pump to not be able to reach that cut-off setting of the pressure switch, the water gets really hot and melts the pump. As with a pump that builds a max pressure of 62 PSI using a 40/60 switch. A little drop in water level or 1% wear in the pump and it will not be able to reach 60 PSI, which will melt it down in a few minutes, maybe an hour.
Either way you get strong constant pressure in the house and don't need a large pressure tank. But the CSV lets you operate well below the max pressure the pump can build, which gives a much larger window for adjustment. This makes it safer and easier to adjust. As with a pump that builds 73 PSI max using a 40/60 pressure switch. There is still plenty of room for a little wear in the pump or the water level to drop, as the pump would still be able to build to 60 PSI so the pressure switch can shut the pump off as it should. But there would need to be a CSV set at about 50 PSI to keep a system like this from cycling to death at low flow rates.