Long-Term Illustrator for Explanatory Visuals

I am looking for a talented illustrator for a long-term collaboration involving explanatory visuals, historical reconstruction illustrations, and modern product-in-use scenes. The initial phase will include about 8 to 15 illustrations, with ongoing future assignments for the right person. I need someone who can create believable, visually strong images that clearly explain how things work, how they are used, or how a process takes place. Please send portfolio samples, price per illustration, workflow, turnaround time, and confirmation that you are open to long-term work. Ylur ogfer as fixed price pr image wanted. The budget has no limits as there are many more images needed than these 8-15 as a start.