What charlie74 said, I use that method and it works reasonably well. You don't even need to bring the front end up all that high, just high enough that the radiator cap/filler is the highest point in the system. Then I cap up the radiator and install the thermostat and put some coolant in reservoir. Fire it up and let it come to temp and top up the reservoir if it pulls any coolant out of it when it gets up to temp.
As for capacity, it is listed on page 36 in the Bentley manual with an antifreeze mix table on page 58. Capacity is 11 Imperial pints, 13.2 wimpy undersized US pints or 6.4 L for the metricated folks. Since none of those correspond to exact conversions, my put is that those published capacities are all close enough to work but are all off by a little bit. In other words, they're close enough for an engineer but would drive a scientist mad.