There are outfits that will NVG mod your machine for very much less than a new purchase. If the panel displays are not NVG (could be that they are, many LCD's are actually NVG capable by design - borrow some NVG's and just look at yours!) then minus-blue glass covers can be made. The rest can be post-lit with minus-blue posts.
Some possible links (no direct knowledge of these, just the product of a search):
http://www.oxleygroup.com/
http://www.skyquest.co.uk/nvg.html