Is $5,000 to remove existing insulation, air seal, and install new r-38 insulation with soffit vents a fair price?

Full attic remediation and insulation upgrade including: - Full removal and cleanup of existing insulation - Air sealing with foam at penetrations and top plates - Installation of properly installed baffles - Installation of new R-38 insulation - Installation of 6 x 4 inch soffit vents on the one available overhang side for intake

Comprehensive attic insulation upgrade including removal, air sealing, and new cellulose insulation. - Remove and dispose of existing blown insulation and debris (718 sq. ft.) - Air seal and insulate 225 sq. ft. of vertical attic kneewalls using Thermax rigid foam and spray foam - Seal all accessible penetrations and top plates with expanding polyurethane foam - Install up to 10 can light covers and bath fan seals - Install soffit venting as necessary and insulate attic hatches - Wrap chimneys with fireproof rockwool - Blow in cellulose insulation to R-38 value (8,616 Bd. Ft.)

Comprehensive attic energy efficiency upgrade including removal of old materials, air sealing, and new insulation. - Remove all existing insulation in the attic - Seal all accessible penetrations between the house and attic with caulk and spray foam (bath fans, wire, plumbing, and recessed lighting boxes) - Install foam material to the backs of all walls facing the indoor environment including knee walls - Install baffles at all accessible eaves to maintain soffit air flow - Install barriers around all hatches and equipment - Installation of gaskets at all openings and doors into attic - Increase attic insulation to at least R-50 with flame retardant, rodent repellent cellulose loose-fill insulation - Dense pack cellulose under floored areas - Seal all penetrations and leaks on outside attic walls with spray foam - Construct a 2 foot wide by 10 foot long walkway and 35 square feet of storage area