Casey would be fine with things being regularly stocked. Stipend might be used if other resources from their own world were located somewhere, such as unique herbs and the like in the same vein as SPverse stuff. If Anton shows them how to use things from his 'verse, all the better!

Room 6 seems like the best bet in that case. Their preference is less in terms of gender and more in terms of countenance; someone laid-back is much more their speed than someone with too much energy who would constantly be in or out.