Operator suggestions for party of 3 women

I'm planning a Kilimanjaro trip, and I'm wondering if anyone has any advice on how to handle parties of three when going to Kilimanjaro? Everything I'm finding seems to be based on double occupancy, so I'm wondering if there are any operators with three person tents or if anyone knows the cost for a solo tent?

Any suggestions or information would be great! I'm not sure we could get fourth person, so it'll probably be three of us.