That shouldn't mess up anything at all, and the ship will indeed appear more often. But no one will have to make such fixes when there are a greater number of smaller freighters released.
Looking back at the first four ships which I released, I now realize that they are not as decisively useful as new freighters (type 102) I will try to work on some of those next. Also, Dan and Der Teddy Bar are fixing the .zon file for the Lake Ship, which is a type 102, although it is not a very typical design.
This is a list of the rest of my ships, and what needs to be done before they are released (tonnages are approximate):
Heavy Merchant (102- 4,100 GRT): Minor adjustment to position of two vents.
Rose Castle (102 - 7,000 GRT): Minor edit of hull. Was causing a CTD but not anymore for some reason.
Belize (102 - 2,300 GRT): Flag needs to be moved; cranes need to be moved again with Pack3d to fix damage model.
Caribou (102 - 2,200 GRT): Should work, but hasn't been tested.
USS Pyro (102 - 7,800 GRT): Working fine, but zones are wrong.
Empire Celt (101 - 8,300 GRT): Working fine, but zones are wrong.
Meigle (102 - 800 GRT): Not tested; keel below waterline using superstructure textures.
E.G. Seubert (101 - 9,800 GRT): CTD.
"Generic Tanker": (101 - 8,100 GRT): Looks like crap; to be rebuilt.
"Troop Transport Hospital Ship Clone": (103) Just clone of transport with new skin; not planning to release. Also, has landing crafts instead of lifeboats.
Lake Ship (102 - 1,700 GRT): Needs new zones; in progress.
Lord Strathcona (102 - 7,800 GRT): Incomplete.
Granville (102 - 5,100 GRT): Should be working, but not tested.