The trailer plug is recessed into the bottom.
The small holes along the bottom are drains. The plate is 3/16 chromoly.
I worked on this thing 20 days straight for 10-12 hours per day. I reckon there is still 2-3 weeks of work to do before it will be up and running. I have a new front drive kit ordered and most of the ancillary parts I will need should be on the way or at least easy to get.
I have to build a catch/vent can for the dry sump oil system. I will need to fabricate a reservoir tank for the supercharger coolant as well. I have a very large Setrab cooler in front of the radiator for cooling the intake air charge (air to water intercooler).
The dry sump oil pan isn't like most dry sump pans. It holds 3-4 quarts of oil and has a filter housing. It nearly cleared the cross member, if not for the drain plug that is directly in the way (I have the ORD high clearance one). So, I have begun building a new cross member that will also integrate skid plates down to the transmission. The plates will likely be 0.25 inch 7075 aluminum. I'm using quarter inch walled 1.5" tube to build it and should be able to get that done this weekend.