I could be wrong but I'm guessing when they state, 2.0L/122 they are referring to the 2.0 version of the Lima engine which is more commonly knows as the (1974 and up) 2.3. So, my guess would be "No."
In these older cars there are only a few aspects to the ignition. The points, condenser, coil and its resistor. Unless there is something odd about the 2.0 points lobes (that might cause more sparking) then it comes down to material of the points and/or the coil and its resistor. You say the gap widens so it is likely the point burning way. If it was the rubbing block that was wearing, the gap would tighten. I'd assume the issues is either poor contact material, a contact area too small to handle the load or the resistor/coil combination is too high of a load.
Make sure you distributor has no wobble otherwise your gap can be all over the place. I'd think if the coil/resistor are the problem that anything aftermarket can replace them. Just remember the resistor has to match the ohms rating the coil calls for. You might want to look at Burton or any other performance aftermarket company to see what they offer. Electronic ignitions can be pretty simple using items like the old Chrysler ignition box and magnetic sensor. But it would require tools like a lathe to convert the reluctor to fit where the lobes are now. And, the 2.0 distributor case is pretty small..., so it might not fit at all.
You might contact Pertronix and see if they make a kit for the early Pinto 2.0. Just don't get the Ignitor I as there is an issue where it burns up if the ignition is left on but the motor isn't running. Hopefully those who have a 2.0 can give more information.