What have you tested so far? R2 is part of the power side to move the flipper and q7 us part of the hold circuit for the flipper. With both having been worked on.. Did you test the flippers coil resistance? It should be fairly easy to compare the ohm readings on a working flipper coil versus the one not working. The fact that parts from both sides are damaged seem to point to the coil itself. Since the same circuit is used to drive all the flippers, you can easily take readings from one part of the circuit and compare to another. After you've compared the coil resistance between 2 flipper coils there's only a handful of parts used in the driving circuit. Few transistors, few resistors, diode, that's it. Here are 2 pictures, one of the exact circuit your trying to fix, connected to pins 4 and 6 and the circuit for the left upper flipper, connected to 1 and 3.

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