The June issue of Australian 4wd has an article on a LR Disco with portal hubs. This looks like a great lift option without all the time and $$ associated with a portal axle swap. Is anything like this availble for the 80?
http://www.4wdworld.com.au/products/portalaxles/index.htm
http://www.4wdworld.com.au/products/portalaxles/index.htm