REIORCEMENT PLATE - YOUR SUGGESTIONS

[Steve Bryant]

Hi all. I have had to make new reinforcement plates for the B Pillar triple joint junction on the wood frame of the Van. The original plate was for the standard chummy - not the van. So my issue is this:

I need to drill holes in the plate to attach it to the frame with as few screws as possible so as not to compromise the wood and possibly cause splits. Where would you suggest drilling the holes and how many?
Thanks,
Stephen