Roof replacement and fascia/soffit repair

[Digit]

I have a question regarding extensive repair/replacement needed to both fascia and soffits on my home. The entire roof needs to be replaced in fact. Sigh
Should I get someone else to do that repair work before the roof is replaced?

The roofing company I am considering wants almost $10,000 for the whole job which includes Certainteed architectural shingles. The job consists of tear off of existing roof which is 4/12 pitch, replacing the ridge vent and replacing the gutters with 5" seamless aluminum gutters with 3x4 inch downspouts. When I ask how many years for the shingles they just keep replying “lifetime”. What happened to 30 or 40 year shingles or whatever? Is this something new so you are unable to make comparisons?

The home is 1300 sq ft with a 1 car attached garage.
The overall price seems really high to me and not knowing the extent of the repair work, it is scary.

I would also appreciate any and all tips you might share with me.

I am in the Triangle NC.

Thank You!