New Sid Oil leak help

The Sid on my wifes new top fuel has a leak out of the right leg.

I would have to assume most of the oil has been puked out judging by the spot on my garage floor(I hang the bike by the front wheel).

I want to add oil and get it through the season before I send it in for warranty.

Any tips on checking the oil and how much to add? I haven't looked at the schematics for this fork yet but I figured I would ask here first for some help.

Thanks