There is no charge for assembly on paks, or customizing the loft and lie. In the notes section on the check out page is where you would need to tell us how you want the loft and lie specs adjusted.
The current instructions at the bottom of some of the pak pages are not clear and we are working on correcting them. Basically, the updated version will state the following:
Custom Assembly INSTRUCTIONS: If you would like The GolfWorks Professional Assembly Team to custom assemble your pack you need to do the following:
If you need further assistance please call The GolfWorks Customer Service at (800) 848-8358
Hope this helps. Let us know if you have any more questions.