Congrats on the purchase...You'll love the bumper.
The 3-4 month wait is questionable,I ordered my SW bumper for my 4th gen August 28th of 2009 and received it December 8th 2009.
Some guys i know waited 5-6 months for there's..Some even longer a few years back.
Realistically it depends if SW is producing a
BATCH= more than 3 or so bumpers being built on a production run.
Once you place your order,it doesn't mean SW is going to start building your bumper right away...
The $149 delivery charge is for commercial addresses...
It's $189 to residential addresses
And yes the bumper is bolted to a pallet which adds to the shipping weight unfortunately.
It will come shipped like this with plenty of plastic wrap so the trucking company doesn't damage it.
IMHO...I would do it all over again and endure the long wait for a high quality bumper like SW.