I built my own pressure bleeder to bleed the brakes on my TR4. Someone might be able to adapt it for a Rover. I had most of the pieces in my garage. It cost me less than ten bucks and works like a charm. I followed this guy's idea:

http://www.bmw-m.net/TechProc/bleeder.htm

 

Haha coincidently I also ordered the KD-tool one man bleeder tube last week and should be receiving it any day now. It's reassuring to hear that it worked well for you and I'll try mine on the Disco this wkend.
Now just so that I'm clear - when you were pumping the brake 7-10 times did you need to run back and forth to check on the brake reservoir? The one on the Disco doesn't look like it'd hold much fluid between pumps before it gets too low and start sucking air in.

 

Disco Alan,
I meant that it took about 7-10 pumps for each wheel to pump all the old fluid out. For each full pump you get at least the same amount of fluid out that the hose would hold before it comes out of the check valve... So I over filled the reservoir to the neck and would pump about 2 maybe 3 times before it reached the "min" line. Check it every few pumps just to be safe. Once you do one wheel you'll know how many pumps to give it before it gets too low. Also make sure the bleeder valve is open enough to let the fluid out but not let air in through the threads. The pedal should go all the way to the floor with ease but do it slowly so the hose doesn't blow off the bleeder screw. I think it says all this in the instructions. Give us your feedback!

PS: brake fluid tastes awful...

 

For an '03/'04 probably the tough part is to find the right reservoir cap that is the push down and 1/8 turn kind. I haven't tried looking for one though.

Alan