There are 4 real good sources for new parts. Most of the small stuff on the playfield that is interchangeable with other games is still available. Things like the elastic bands, the posts, lane guides as well as many of the electrical components on the underside of the playfield.
There is even a company in North Carolina that is manufacturing new and improved circuit boards. I also used a service in South Carolina that rebuilds damaged circuit boards.
The biggest issue is when you have a game specific part that is damaged and is not reproduced. Those require some searching and watching eBay. Since the Eight Ball Deluxe is a pretty popular game, there is a company that repops the playfield plastics, the pop bumper caps, and cabinet graphic templates.
Biggest issue facing EBD is the previous owner hacked up the wiring harness and circut board connecters. The next big job will be to replace all of the circuit card connectors, not a difficult job, just extremely tedious.
Here is a little larger picture of the 3 machines.
JO