Getting Closer TTI headers installed today

Hey Guys,I picked up a 66Dart with a slt 6 with all the clifford 4 bbl. setup headders,etc.I,m planning in the future to swap to a stroked 360.Can any of you that have done the swap,give me a quick rundown on what,s needed?Here,s what I have an idea about..
m/mounts
headders/TTI
p.steering coupler/flaming river
tranny cross member/notching??how much?for d.side headder?
If there,s anything I,m missing?I,d appreaciate a headsup on anything else needed.I,ve alredy swapped to 11 inch front disc.bbp and also 8 3/4 s.g 4.57 waiting for moser bbp axels,and proportoning valve.Thinking on the 3 inch mini-tub next.Any advise would be appreciated.Thanks