Yes the Outback will tolerate a much higher input voltage than the Blue Sky 3024. 48v is no problem. I think 150v is absolute limit.
However, I think parallel connection is probably the better way to extract the most AHrs out of the panel's on a boat, providing you have room for adequate cable size.
The Outback Mate (there is a Mate 2 and a more comprehensive mate 3) is a remote
that can be flush mounted. It will display the output from the outback 60 or 80. It can also be used to alter the parameters as well as a heap of other electrical
information. Some other accessories are needed so it gets an expensive system, but is very good.