I was going through old files on my laptop and found a deck plan I did of a 600Dton Aslan Clan Transport.  I think I copied it from a picture in the GURPS Traveller rulebook. The great Traveller sci fi artist Jesse de Graf did this wonderful image of the vessel.

Here is the deckplan. Hope it comes in useful.  Note: the crew module has two levels.  Only one level shown on the plan for the FTL drive.I also did a version in case you use FTL drive in your game rather than the Traveller Jump Drive.