Making Perfume

Rylon Corporation manufactures Brute and Chanelle perfumes.  Raw material costs $3 per pound.  Processing a pound of raw material takes one hour of laboratory time, and yields 3 ounces of Regular Brute and 4 ounces of Regular Chanelle perfume.

Regular Brute can be sold for $7/ounce and Regular Chanelle can be sold for $6/ounce.

Rylon has the option of further processing Regular Brute perfume to produce Luxury Brute perfume, selling for $18/ounce.  Each ounce of Regular Brute processed requires additional 3 hours of laboratory time and yields one ounce of Luxury Brute at a cost of $4.

They can also process Regular Chanelle into Luxury Chanelle.  Processing an ounce of Regular Chanelle requires 2 additional hours of lab time and yields one ounce of Luxury Chanelle, again at a cost $4.  Luxury Chanelle sells for $14/ounce.

Rylon has 4000 pounds of raw material on hand, and 6000 hours of lab time available.  How can they maximize their profit?