Will be documenting my own playfield swap which starts with a decent factory Mylar'd non Diamond Plate playfield with the most recent CPR Gold. Like everyone else, it has no dimpling on the back side and will need many top side holes drilled/opened/beveled. It has new Reese Rails and will be going with all new ramps, plastics, targets, and anything else found along the way.
I have my share of hacks I'll be cleaning up along the way. Most of which is from adding some lighting to the cloud and will be retained using some Molex connectors. The playfield has been curing for a year or more at this point. There's been great posts of suggestions, improvements, and changes from the community on how to work some of the issues and plan to be follow them. I'll use my original playfield as a dimpling template for the new one. It has a full Cliffy set on and will be transferring over. It also has LED's but many of the GI will be changed out for 2SMD style.
Here are some pictures of when I got the playfield. Note some of the holes aren't drilled all the way through like the slings, etc. They're drilled but not quite the full way through. Easy fix.