Good job on getting the tongue weight!
What you want to do is attach the WD bars then lower take the tongue jack up so the trailer's full weight is on the hitch.
This is a start point:
If the trailer looks level;
and
The tow vehicle looks level:
and
The WD bars are relatively level to the trailer frame...
Then you are probably 99% ok. Take it for a test drive.
If the trail is low to the front, the bars are grossly not parallel to the trailer frame, or the tow vehicle sags horrible to the rear, then the hitch ball angle will need to be adjusted, and the L brackets on the Equalizer will need to be adjusted too.
If the bars are not perfectly level, that's OK as long as the tow vehicle and trailer are level. The Equalizer bars on my rig sits slight up, not perfect parallel, and it functions quite well. Use common sense here. Test drive is your best bet now.
Good luck.
Someone else may be able to help explain how to fine tune the bars and the hitch head. Mine is set good, and I've never attempted to change it. But someone else may be able to assist there.
