Hemi swap oil pan questions

I'm collecting the parts to swap a 2012 5.7 into my 71 Demon with the stock suspension. I'll be using TTi headers and I'm looking at the Milodon oil pan. I've read about issues with leaks but is there another pan option for use with TTi headers (1.75" tubes)? TTi says that the headers will not clear anything other than the Milodon 31000. Is the stock dipstick retained or does it have to be replaced?