It's really long but here is my build that has a lot of pics in it.
rb26dett-93-240sx-convertible-project-t478401.html
Here are some pics of the modifyed oil pan. Sorry I dont have pics of the inside or the sides, but you have to cut out the front diff and make plugs for the shaft holes and you have to cut some of the baffle to. The outside cooling fins had to be ground down some too.
Here are some of the water pump. See the difference between the stock one and the new N1 water pump? It covered my engine bay with coolant and everything had to be torn off again.
Hope this was helpful, good luck.