Warmoth is a bit cheaper. You can get the TOM for $14 for chrome (18 for black or gold) and the stop tailpiece for $12. A slightly cheaper option would be to use a TOM, and get furrules to run the strings through body. Furrules go for $0.84 each from Warmoth.
And one more vote not to use pine. Cheap construction grade pine is no good for guitars. You'll be wishing you used something better as long as you own the instrument. Old growth instrument grade pine will probably cost you more than good hard wood. Ash, alder, maple, and walnut are all readily availible domestic woods, don't cost too much, and make great guitars.