The dash is out, contrary to previous comments by me its not that easy, probably is once you have done one but it just a matter of working through it.
A few tips in case anyone wants to do it, mines an 86se, all of the instrument cluster and central panel with the radio need to come out first, the dash binnacle also needs to come off sprinkled with lots of swearwords because the mounting bolts are about 25mm longer than they ever needed to be. Otherwise its by the manual. Ive got a parts manual too which is a good reference. One thing that I found though is dont try and take the vent tubes off at the vents, they dont just pull off, take them off at the heater unit, where the do pull off easily.
The plastic sleeve linking the blower and the heater unit has been removed on the above.
Bash