The ON3 kit is pretty cheap and looks pretty beefy (I have the ff kit but not installed) I got the kit, 4" intercooler, 80lb SD injectors, HPX maf, maf wiring plug, without turbo, wg, and bov for like $2,300 shipped.
Lot of people hate ON3 but you can't beat em for the $ in my opinion.
Not sure if they would sell just the headers or not. BG makes ff headers as well.
For shorties I think about any hheader will work.
305/333 WHP/WTQ with CMS Stage II Cams
440/552 WHP/WTQ on Nitrous
7.86, @ 89.1mph, 1.61 60 foot, on Motor
7.15, @ 98.8mph, 1.55 60 foot, on Spray