Even though it might be above the 1750 pt budget, but you can field sternguard as elites, scouts as troops and bikers as fast attack with a biker captain (making the bikers troops and scoring) and Kantor (making the sternguard scoring). This will allow you to basically field every unit in your army, minus HQ and any heavies, as scoring units. Not going to lie here, this is a scary idea of fielding so many scoring units and I would believe to be actually pretty viable.
thoughts?
kek