Saw your other post. I know that place, I've been there.
All documents you can find at the municipality of Raška.

Or, before I forget. I you are in the area just drive by and some people there. They will know, usually works better and faster.

Sadly, we do not live close! We have extracted as much information as we can from living family, and the pictures I took from the groblje on the last trip. Family story is that +Radisav was historian for the village, but that the records were burned in a fire. I will send a request to the Raska Municipality at the address I found on here. If I am sending requests for multiple ancestors, shall I send them separately? How much should I expect to pay for these services/copies? How long does it take for a response? Would it be better to ask a family member who is still living there to obtain for me and pay them directly?

Send it together, as for response time that is a big unknown. I would go for both options, via the municipality and via family members. I have no idea what they would charge, but it wouldn't be much.