I think both of you would be better off going with larger front brakes from willwood, stoptech or something vs. changing out the back. If you need more braking force, the front is the place to start not the rear even if they are drums.
"When we see land as a community to which we belong, we may begin to use it with love and respect. There is no other way for land to survive the impact of mechanized man, nor for us to reap from it the aesthetic harvest it is capable, under science, of contributing to culture." - Aldo Leopold
2001 Mitsubishi Montero Sport 3.5XS - 265/75R16 Cooper ATP, Aisin Manual Hubs, Bilsteins
1979 Honda Xl185s
1999 BMW F650
1990 Bianchi Bicycle - the daily driver
2012 Danner Mountain Trail Boots