Hello 1967Caravel ,
Our 60 trdwnd had the bowen as they all did ,we used a 10 gallon suburban
unit,it fit in the opening very well ,I did have to redo the ducting to match the old shroud ,as I definately wanted it to be retained .That took some
fabricating to do ,but the results were worth it .nothing will be an exact replacement ,but you may get reponses from folks with Atwood installs ,and the layout of the heater is more like the bowen ie: controls and ducting .We
have the pilot ignition only ,no electric .It is possible the atwood will be a
better oem type fit up ,but others will respond here to you about that.
Scott of scottanlily