Hi Russ,
If shipping is anything like here, be careful with charging a flat rate.
I got caught out with my PA 3X. I allowed just say $150 for shipping to capital cities here in Aust. I knew some destinations would be a bit more expense than others, so I picked an average. The guy who bought it was basically in one of the cheaper destinations, but he lived about 50 miles out of the city, so I told him I’d still do it for the same price. How much extra could 50 miles possibly cost on a 1000 mile journey . Wrong, I got charged nearly double.