Welcome to the Time Machine club. Either place wanted adds for the parts and pop in to the time machine thread and ask also parts can be had for a price and sometimes a song it may take time. What shape is your ramp in? Mine is usable but needs replacement like many others. I had contacted Freeplay40 via the ramp thread about getting a new one he is looking in to doing it once he gets a bigger machine set up and going and figures the best way to make a mold. One suggestion is rebuild the chime unit Pinball resource has the parts did mine sounds great when testing now just to finish my machine.