OK, make it 300 sqf.. easier to calculate.
300 sqf=12x25
Framing at 16in center to center:
floor: 2x6x12:25pc=200
stud:2x4x8: 80pcx3=240 (including interior walls)
post:4x4x10:6pc=60
roof: 2x6x10: 20pc=200
Sub total: 700.
============
Roof:
OSB:22pc=400
Felt and Shingles: 400
Subfloor:
OSB: 10 pc= 200
Exterior:
T1-11 siding: 20pc= 800
Facia, soffit, and gutter: 400
Subtotal: 2200
==============
Interior:
Exterior doors(2): 500
Interior doors: (2): 200
Windows(6): 1500
Drywall: 30 pc 400
Insulation (R-13): 500
Subtotal: 2900
================
Electric:
50 amp sub-panel, breakers: 150
12 gauge wires: 300
Boxes, outlets, lights: 200
Electric heating: 200
Subtotal: 850
================
Finishining:
Paint: 500
Flooring: 600
Cabinets: 500
Subtotal: 1600
=================
Misc. supplies and disposal:
1000
+++++++++++++++++
Total: 9250
Labor:
2 persons full time, you probably can get it done in 15-20 days.