Thin shower in back area, if pushed to one side possible to run a thinner/longer loft bed along other side. below loft bed bed could put a criss cross desk facing towards rear. snowboard holder under loft.
In fact, some fall in love with the great outdoors so much that sometimes such a retreat is later extended into a lifestyle. Such is the case for filmmaker Zach Both, who converted an empty cargo van into a one-of-a-kind camping van/work studio.