How do I modify AT&T 6300 PLUS for EGA Display?

[simnet at ssc-vax.UUCP]

Previous messages have been posted concerning modifying the AT&T 6300 to
use non-AT&T video cards.  I need directions for modifying the AT&T 6300
PLUS to use an EGA video board (specifically, the Video 7 VEGA Deluxe).  
Any help would be appreciated.

					Tim Good
					Boeing Aerospace Co.
					Seattle, WA