It really depends on your ability to scratch-build.. :-} BlueJacket Shipcrafters (www.bluejacketinc.com) has a 1/192 scale kit of a VICTORY and sells the plans separately. If you want to build a specific merchant vessel, you'll need to compare photos of it to the Revell kit and see what has to be removed/added.
A year to two ago, I did the reverse with the BJ kit. I built BOTTINEAU (APA 235) for one of their customers. You can see a photo of her on the BJ site under "Custom Models".
Al Ross