The Rafale is a very expensive aircraft. The total unit cost, including R&D expense, is over $90 million euros each, of which ~50 million euros is production cost. Weapons, sensors, parts, munitions, training, etc. will easily add another 20-30+ million euros each.
It's roughly comparable in cost to the Mitsubishi F-2 and F-16 E/F (UAE export pricing). If the PLAAF were to ever obtain this aircraft, I'd suggest reasonable numbers (60-80) for air superiority and carrier operation role. Most likely they'd be made in France only.
I'd be more interested in obtaining rights to produce the Mirage 2000-9 locally with tech transfers. Last year there were rumors that the PRC was interested in obtaining 210 Mirage 2000-9CS for $12 billion euros. This "news" was later proved to be false, but I do think the Mirage 2000-9 is a good cost-effective platform. Equipped with RDY-2 radar, laser targetting pod, AM39 Exocet, and Mantra apache cruise missiles, it'd make a good mid-level multi-role strike aircraft.
During the 1999 Kargil conflict, the Indian AF reported to have deployed the Mirage 2000 in 515 sorties, of which 240 were strike missions, dropping some 55,000 kg of ordnance. The Indian AF was very impressed with the high sortie rate, high-altitude performance, reliability, and ease of maintenance of the Mirage 2000. In comparison, the Indian AF's experience with MiG aircraft (from MiG-21 to MiG-29) was much worse.