2003 solid axle swap

Hello! I am wanting and about set on a one ton front end solid axle swap with leafs for my 03. These little front diffs, steering racks, and cv axles are driving my nuts. I have alot of general knowledge about this kind of thing but nothing specific to the 1st gen tundra. What is some good info to know going in? Any mods to the oil pan necessary? What major things have to be cut out? Where do people usually put their shackles front or rear? What is a good leaf to use and where do people usually make their wheelbase? Thanks in advance.