.100 and .156 for the solenoid driver board
.100 for the mpu board and lamp driver board
.093 for the display connector harness and power supply
The 093 are pretty robust and would be the last I'd replace. .100 I would replace both the male (board) and female (connector) connections. .156 I inspect closely and if tarnished/plating gone I replace both as well if not just the female connector side.
Practice on scrap wire a bit first to make sure you're making good crimps. The ratcheting both wire and insulation at same time works the best IMO.