The Allied Leisure PCB is from a Knockout gun cabinet.
http://www.pinrepair.com/arcade/knockou.htm
The PCB in Picture 3 is from a US Billiards Shark cabinet.
https://www.arcade-museum.com/Videogame/shark
Just recapped a 4600 last night in a Centuri cabinet (previously converted to Q*bert). Have to agree - a 4600 looks amazing when dialed in and working properly.