You don't want to put headers on that truck. Everything is tuned and you have some sensors and stuff that you'll have to make spots in your headers for. A good muffler man can do it, all it really comes down to is drilling holes and welding nuts so the sensors will thread into the pipes- but for no more than you gain, it's really not worth the trouble. I had Flownmaster 40's on my old Chevy, and they sounded great, but I put Magna Flows on the F 150 I have now and they sounded awesome. I took them off when I lesed some land to deer hunt and had to drive thru a few backyards to get there- the people were nice enough to let me drive thru their yards and save a half mile of walking, so I figured I'd be nice enough not to rattle their windows at 5 am on Saturdays.
Techno, I paid $200 bucks for the 205- it was a divorce mount, which worked well, because I had a well- built TH400, but it was a long shaft out of an old Impala, so of course a regular case would not bolt up. I eventually started rock crawling and made that case a twin- stick so I could disengage each axle as needed and put it in my rock buggy. Why don't you like your 208? Your passengers tired of having to hold their feet on the shifter to keep it in 4LO?
Been there, done that.