Slight rubbing problem with tires

Ok guys here it is, SS springs,295-15-60 tires,10 inch wheels, 5" offset

Passenger tire has no problem because of the stiffer spring on that side
Driver side tire just catches the out side of the tread on turns only,
really don't want to put the big shackle bars on it and don't really want air shocks either,rolling the lip isn't an option either.
This is what I would like to to do ,you tell me if you think this would work.

I would like to add a leaf to the spring on the drivers side to beef it up to even out to the passenger side.

What do you guys think,has any body done this or what else is left ?

Bob