I can't say about individual plastics. I have replaced the backboard. Mine was covered in adhesive on the back. I removed most of the adhesive stuck from the prior backboard and attached the new one easily. Getting it aligned perfect is a little tougher. The rim around the magnet cracks after repeated hits if the ball misses by just a little. Leveling the game well helps.
Since were talking NBA, I can show off my new shop job with white rubbers, orange Cliffy posts and blue flipper rubbers. It looks good in person. IMG_3517.JPG IMG_3514.JPG IMG_3515.JPG IMG_3516.JPG IMG_3518.JPG