A buddy of mine welded up the oil tank for me last weekend. The filler cap is to the left. The two center bungs are for the return (from the pump) and the vent (to the case). The bottom bung is to the pump. Not visible in the picture is the drain bung, which is on the right side and just behind the line of sight on the bottom of the tank.
I'll be working with Kevin from www.fabkevin.com to make a bracket for holding it to the frame later.
Finished with gloss black powder coat; the smudges are my finger prints.
Here's the kit as I bought it:
Here's the finished product: