Yes camping facility is available at both places. And fare of jeep raikot to tattu Fm is 6000 to 7000. Last year i paid 6000.
Deosai is accessible from skardu and astore as well skardu side is short jusk 30km approx and from astore it ia around 100+km so rent from skardu is around 8 k for trip and for night stay you have to bargain. So imagine rent of jeep from astore.
Rates are only closest guess