Best wax consensus?

For a single stage older paint job don't go crazy on waxes that are meant for show cars. Especially if you plan on repainting it sometime soon as you said. You really won't get the benefit of it for as deep of a shine like a Base Coat/ Clear Coat Paint would.
Johnson wax's Kit it a very good wax as are some from Turtle Wax. Turtle Wax seems to keep changing the name of their products all the time but it used to be called Turtle Wax "Gold".