I've got a few options for you all from AMSOIL.
BUY AMERICAN!!
Spec. calls for 4.5 quarts, so round up to 5 quart bottles.
Filter:

"Made with a full metal base plate for superior strength at the double seal & also feature a silicone anti-drainback valve. Glass-enhanced media in WIX oil filters offers greater efficiency, capturing more 10 to 12 micron sized particles than other cellulose/synthetic blend medias. "
Retail: $11.95
Preferred Customer Pricing: $8.95
Synthetic Oil Options:
SAE 0W-30 Synthetic Signature Series Oil

"The industry benchmark in lubrication technology. Designed for those who demand the absolute best in motor oil performance. The exclusive “extended drain” formulation delivers superior engine protection and maximum fuel economy and exceeds the requirements of modern, high performance and older engines."
Retail: $11.10/qt
Preferred Customer Pricing: $8.50/qt
SAE 5W-30 Synthetic Motor Oil

"Engineered to outperform all conventional gasoline engine motor oils. Reduces heat, friction, and wear for maximum performance and fuel efficiency. Clean engine formula resists high-temp breakdown that forms sludge and varnish. Lasts longer and offers better protection."
Retail: $8.90/qt
Preferred Customer Pricing: $6.95/qt
These synthetic oils can also be purchased in Gallon jugs and Cases of 12 quarts.
If you are interested in the savings of being a Preferred Customer, you can
Sign Up Here.
There are also a host of other products for your filtration and lube needs. Let me know if I can be of assistance.
Cheers,
Brian