Some tips:
Probably should never go for it/ get it but Corp can be done with a crossbow with ruby bolts, and you can help your team with Arclight or BGS specs no problem
Most GWD bosses can be done with range or whip on accurate stype
TOB/CoX pets are probably out of the picture, but plenty of pures do in fact do both.
DKs should be done in a group and attempt to snipe the pet.
Pet Penance queen should be relatively obtainable, but huge GL on that.
Overall, good luck on all the pet grinds, keep us updated