The beam in 198 has a very slight bow in it, barely noticeable when eyeballed, and less than an eighth inch at the corners when measured with a straight edge, is that enough to worry about or should I do some refurb on it?

Did search, but while info on swapping and re-enforcing it was abundant, I couldn't find anything to indicate what was acceptable.

Also, are replacement lenses available for the stern light? mine has everything but the lense itself, looked at the other lights, and it's the same style (hemisphere about 1-1.25" diameter) the light's in good shape except for the missing lense so would prefer finding a lense if possible.

Thanks
Ken.