is it possible to make sims cc in rblx studio?

before anyone asks YES i have blender but i'm not very familar in how to use it

i was wondering i can make a roblox model in roblox studio, export it as an OBJ (which i know i can do, i've done that) and then export it into sims 4 studio as a custom object??? it doesn't have to be functional, just as like a decorative object.

i know i can export roblox models to obj but i don't know if you have to originally create the obj file in blender for s4studio to support it. i can import it in blender afterwards if need be but is it required to MAKE the obj in blender to start with? or does it not matter as long as you have the obj file and texture for it? 

i also exported the sims 4 body mesh from s4studio and imported it to rblx studio so i can scale objects properly but i don't know if the body obj is the same size in rblx studio as it is in the actual sims gameplay sooo not very sure if my cc will fit it...

im sorry if this is too complicated to read. tldr: i need to know if i can make obj files in an app that isn't blender, and are said obj files that same size in that program as they would be in sims gameplay so that the cc is scaled correctly