There is a hotel just in front of RKMP station name Hotel Shubh Inn. For your dates the price for a Deluxe double room at MMT is showing 2429. So you can also consider this, the rooms are looking good. Otherwise double bed AC room is available at RKMP for Rs 800 for 12 hours. I am attaching the video link for that. I think you can book that directly at Station itself. So that is also a good economic option for you in the station premise itself.