The US navy should buy the plans for the Erebus/Terror and they would have a solution for their search for a littoral combat ship. Certainly looks better gunned than the two toys that they’ve bought for that purpose.
Erebus length- 405 ft. draft 11’8” guns 2x15”, 2x6”, 4x3”
Lockheed length 378’ Draft 12.8 ft, gun 57mm
GD length 419’, Draft 14.1 ft, gun 57mm.
The Erebus was wider than the Lockheed design, narrower than the GD design. The newer designs are much faster, but the older British design could be re-engined to make up some of the difference. And with adequate armor and big guns, you don’t need to be able to run away as quickly.