May I ask which endless spells are you using? I created an 1500 points army as a starter (megaboss on foot, warchanter, weirdnob, 3x brutes, 1x ardboyz, 2x gore gruntas, ironfist battalion), and it's only 1430... I don't see any army options for 70 pts, so maybe an endless spell would be OK - but which one?
The maw-krusha and some extra ardboyz will be the next step for the 2000 pts army.