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AMIP style run with CESM-LE RCP8.5 Data

I have a few questions about creating boundary conditions for an AMIP style run but for the future climate with altered SST and sea ice conditions.  I am hoping to use output from the SST and aice_d output from the fully coupled CESM-LE experiment as the boundary conditions.   I have been following some of the directions from http://www.cesm.ucar.edu/models/cesm1.2/cesm/doc/usersguide/x2306.html but using Matlab instead of NCL.  I was wondering if I need to re-interpolate the data from the ocean/sea ice grid onto a 1degreex1degree grid as they show or if can I keep the current grid?  It seems a bit redundent to add in the extra interpolation step if the model will have to re-interpolate it to the atmosphere grid anyways.  If I do have to interpolate can I do it to the 0.9x1.25 cam grid I am going to run at instead?  This would just reduce the interpolations steps that are done.If I don't have to interpolate the input data how should I save the coordinate netcdf variables?  The example above specifies saving it as lat(lat) but for this grid the lat and lon variables are 2-D (TLAT and TLONG).Thanks so much!MelissaPS sorry if these questions are basic, I'm very new to running the model.  
 
In case other users are interested.  I was able to run the model in this configuaration by changing SSTICE_DATA_FILENAME to a local directory that held a user generated file with SST_cpl and aice_d on the pop/cice grid with coordinate variables TLAT and TLONG.  I also had to change the SSTICE_GRID_FILENAME to: $DIN_LOC_ROOT/ocn/docn7/domain.ocn.gx1v6.090206.nc (ie. associating the data with the appropriate grid).
 
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