If you are going to be doing more than 3-5 boards, screening solder paste automatically is the only way to go. Our YS350 does really large boards accurately and quickly.
PCB fixed system:Pin positioning
Adjusting for table:front/rear±10mm，left/right±10mm
Printing Accuracy:±0.2mm Repeating Accuracy:±0.2mm
Power supply:AC220V 50HZ