And second of all, guinea fowl are such lean birds that you're not going to get much rendered fat anyhow. Most of the time you'll have to add fat in the form of bacon or something when roasting. So question falls entirely into the category of theoretical.
Driving distance from Fredericktown, MO to Saint Louis, MO. The total driving distance from Fredericktown, MO to Saint Louis, MO is 89 miles or 143 kilometers. Your trip begins in Fredericktown, Missouri. It ends in Saint Louis, Missouri.
From the Kennett, MO area (25 miles): Take Hwy 25 North to Holcomb, MO. At Holcomb, take Hwy 53 North to Campbell, MO. At Campbell, take Hwy 62 West to St. Francis, AR. At St. Francis, AR, leave Hwy 62 going west on Co. Hwy 341. Stay on the paved road 3 miles. Do not go on any gravel roads.