American Model Builders' cabooses: Ease and favorite models?

I am thinking of assembling a couple of American Model Builders’ wood caboose kits. How easy are they truly to assemble? I am thinking of building one of their MKT katy cabooses or a IC iowa division caboose. the athearn caboose frame which comes with each kit, does it come already for same legnth of the body?

While I haven’t built any, several of my club members have and they said they were easy to build, compared to other craftsman type kits and they all did turn out well. Only reason I have tried them, is they don’t make one I need.