Which long tube header that is not TTI suck the least?

One option is Hedman Tight Tubes shorty headers, put them on my Duster after I discovered a huge crack in the manifolds I was going to use. The headers themselves fit great and are easy to install but fabbing exhaust to come off the headers is the tough part; the outlets point straight down and are right at the oil pan rail so not much room to go down. I ended up buying one of those exhaust pipe "donuts" and a pair of offset header collectors from Sanderson and made my own pipes that snake down from the headers, back up over the steering linkage then back down again to go to the exhaust system.

In your case I think it would be worth the trouble, it's still probably cheaper to find an exhaust expert to fab those down pipes than to pay for expensive headers PLUS overseas shipping.