Hi and welcome from northern Arizona!
Be sure to look under the Surveyor mods forum for excellent ideas and modifications for our trailers from other members. The only suggestion I do have is to camp with it a few times before deciding on upgrades and mods. The appliance threads also give great advice on how our heaters and a/c work; there's even manuals available on this forum site.
2013 Forest River Surveyor SP220 Sport
2012 Ram 1500 4X4, 5.7L Hemi quad cab