Back in 2013 I bought a Sealey VS820 which I'm pretty pleased with. It has its own pump so you don't have to go letting your tyres down and is a great help. There's a picture here if the link works http://www.landyzone.co.uk/lz/f16/browns-brake-rebuild-thread-220055-2.html. An awful lot of air can hide in a Land Rover brake system and it would take ages just pumping the pedal.
have you done this ? does it work ? does the chinese fuel tap hold pressure ? will the cheapo garden sprayer withstand brake fluid ? will I be binning the lot a year later ?