Hi @ed_T,
For Kc, you may find the User’s Guide Data Sources section on Kc helpful. It links to a couple of resources that can be used to find / calculate Kc values, including an online resource provided by FAO and a spreadsheet provided by the Natural Capital Project.
For albedo, I’d recommend taking a look at the literature recommended by the User’s Guide here:
Albedo for urban built infrastructure can be found in local microclimate literature. Deilami et al. 2018 and Bartesaghi et al. 2018 provide a useful review. Stewart and Oke (2012) provide value ranges for typical LULC categories.
For shade, this previous forum post about calculating shade values may be helpful: Urban Cooling Model shade values on sample data
In general, there are several prior conversations on the forum related to this topic; please browse the discussions under the urban-cooling tag here: Topics tagged urban-cooling