I found this sight looking for new cable options myself. Looks like good stuff, kinda pricey though.
http://custombatterycables.com/application/f350_cables_L1999-2003.htm
Those are bad azz! They would save alot of room over headers... I know they are very popular in the Cummins world. They produce significant gains, I would buy set for sure, to test against our headers from Fab Shop.
All looks good Nick! Glad they got her going! But as far as valve covers, credit needs to be given where credit is do. Billy Zimmer ( Stroked Out) was the pioneer on them. We did that as well. They are great.
There are trucks @ 1700-1800 now. There is a Dmax with a Bosch standalone who is knocking on the door of 1800 up here in ISP. If they haven't cracked it already.