Rod Gunnel Storage Inserts

[KenBoo]

I know this question has been posted before but still can't find replacements. Current gunnels are 59" L x 15" H. Looked all over.
Ebay, Wellcraft parts, and Great Lakes Skipper. All have replacements but not in the size I need. Largest I was able to fine was 55".

Any additional suggestions?

1990 V20 I/O

Thanks,

K