I have the Iron Shipwright 1/350th scale U.S.S. Maine resin kit, and I'm extremely happy with the quality of the resin castings plus the nice photoetched parts.
Nearly everything seems to be quite accurate, too, according to my research.
However, the lifeboats are a glaring inaccuracy: they have pointed sterns and sharply sloped bows instead of square sterns and nearly vertical bows.
Does anyone make 1/350th scale late 19th century - early 20th century lifeboats? This doesn't seem to be a problem with just Iron Shipwright's offerings, since it looks like a bunch of other kit manufacturers fudge it with regard to lifeboats for turn-of-the-20th-century vessels.
Or should I "roll my own": make an accurate styrene model, then cast a bunch of duplicates in resin?