Replacing Beckson Ports

[mregan]

I'm thinking of replacing the Beckson ports on my '86.  Took dimensions of them at the boat last week.  The cutout appears to be about 12 1/2" x 5 1/2".  Searching on the site it looks like others may have replaced theirs with Lewmar ports.  I'm looking at the size 0 which has cutouts of 6 1/8" x 12" or the size 1 cutout is 6 3/4" x 13 5/8".  Has anyone used either one of these?