Here are the bolt part numbers that I purchased for my 2005 3L just a few months ago. They are correct as they match exactly what I already have and they hold my girdle to my block nicely
1-2-3-4-17: F5RZ-6345-C, $3.01 EA (sub total $12.04, only buying 1-2-3-4)
13-14-15-16: F5RZ-6345-D, $4.22 EA (sub total $16.88)
5-6-7-8: YL8Z-6345-BA, $7.25 EA(sub total $29)
9-10-11-12: YL8Z-6345-AA, $6.04 EA (sub total $24.16)
Total Cost: $82.08
I figured I only needed to buy the bolts then held down over the mains because these are the critical bolts, the other bolts I reused.
These look like the same part numbers you posted initially. I'll go find my recent and tell you what I paid for them, but it wasn't cheap.
To get the above pricing call Steve at Tousley Ford, 1-800-328-9552. Tell him Mike Ries (pronounced 'Reese') sent you and you want the SVT Performance group pricing.