Yeah it's pretty rough. Unless you've been working on it since the HoM was announced, or have a dedicated group of people to play everyday it can be quite difficult to get some of the points. Especially as it gets harder the more points you have (as you usually get points just for putting one or two things into the monument, but then to get the next point you need like 10 of them, lol)
If you haven't done already, check out the Guild Wars Beyond storyline - it bridges the gap between the two games and it does give you a nice amount of money which should get you a couple of points.
mmm just had a quick scan I have 42 miniatures
..Gold: 4 unique (2 of the same 1)
Purple: 3
Green: 1
Commons: 33

in 5v5 
Thanks anyway