Remove the front optos. It's not too bad, and you don't want to screw anything up. If you do install a repro ramp, you will need to do this for sure, as these ramps are thicker. I'm actually surprised you were able to get it out without doing this.
While it's apart, either reflow or replace all the optos for the magnets. It's not easy to get there again, and now's the time. install the magnets and test the optos and magnets before installing the ramp. This area is one of the biggest pain in the asses in pinball to deal with after the fact.
As for the ramps, the only place left to get the set, and it's a must IMO, is MAD. Even James is out:
http://mad-amusements.com/product.php?id_product=55
The main ramp is always broken/melted over the magnets, there are usually cracks in the holes for the long main posts in the front of it, above the right ramp (usually the posts are broken in the threaded area as well, you may need to replace those), the right ramp may have the typical chip out of a side of the entrance, and the lower subway gets cracked from vibration.
Good luck. My cab was perfect, and the PF looks awesome with HP coloured LEDs in the spotlights.