Some pics of my mk3 cab with 6 pcb's in it. 
What I have done so far 
- I rewired the entire cabinet. New switch/ jamma harness/ outlets/power cord/ power strip (high end)
- installed 6 pcb's- sf2 turbo champ edition/ double dragon2/ rygar/ ult mk3/ bad dudes vs dragon ninja/ tmnt
- control panel was in mint condition when I bought it so there was no need to touch it
- replaced coin mechs
- added castors for easy movement
- built a removable shelf for the extra pcb's
What is next on my to do list:
- sand cabinet
- repaint cabinet
- add side art- thinking of putting 2 different side art of cab
- add new marquee-not sure which game to add
- add new monitor bezel - not sure which game to add
- add new t moulding
- replace coin mech plastics- bezel / return
- add a multi jamma kit
- replaced locks
This weeks to do list
- installing nfl blitz 99' pcb and test- done
- installing neo geo pcb and test- done
- removing the ult. mk3 board- so if anyone wants to buy it, drop me a line
Next to do list-
-  buy and add an area 51 pcb w hard drive
-  buy an area 51 gun- done
-  sell dk board
-  remove and sell rygar board w jamma adapter
-  sell ult. mk3 board
-  sell dd2 board