Duster Rallye Dash

What modifications would need to be done to adapt it for the '70 Rallye cluster and instrumentation? Cover the hole for the key; rectangular holes in lieu of the circular ones for the thumbwheel radio; and lots of fiddling around and test fitment?
The ralley dash cluster will fit but radio is different and dash plastic is different and how it is fastened to the dash frame.It can be done but will take some work.