I have a Dart Sport with the Milodon 8 qt. pan and TTI headers. No problems except for putting a notch in the K-frame for clearance for the front passenger side corner of the sump. Only a couple of other headers may fit with the 8 qt. but I don't recall which ones. But the Milodon is much nicer than the Moroso, is a little shallower without giving up capacity and has the drain plug in the back. Last I saw, the 360 Moroso had a drain in the bottom! TTI's offer may advantages, including great fit, plenty of ground clearance, no need for a 90* oil filter adapter and are much easier to install than most other headers.
Their new 7 qt. pan may have addressed the k-member and header issues, but I'm not 100% sure. Naturally, it gives even more ground clearance than the 8 qts.
www.ttiexhaust.com