No, the RDI(M2000C radar), has simple A2G functions such as ground avoidance and ground mapping, if this will be available in DCS, I don't know, but the M2000C has those capabilities.
In my opinion, the best heavy weight attack helicopter is the AH-64E for the reasons already mentioned here.
Best medium attack helicopter, Airbus Tiger maybe? AH-1Z?
I'd like the T-129 but I not sure how good it is.
Sorry buddy, but I doubt that an DCS level F-35 is possible, and the reason is simple, lack of information and license.
Edit: Of course, I would love to see the F-35 in DCS, but at the moment, I think only AI F-35 is possible.