I'll take 5 slots for references.
I can offer you to choose the layout of reference.
I will describe to you the cost of the individual parts.

*The main part*

Fullbody - 50$
Headshot - 15$
Chibi - 10$

*A secondary part of*

Body parts according to the type of eyes, hands, etc. will cost 5$

Take orders only on furry and anthro.

Examples:

http://www.furaffinity.net/view/26774949/
http://www.furaffinity.net/view/25762610/
http://www.furaffinity.net/view/25965466/
http://www.furaffinity.net/view/26601134/
http://www.furaffinity.net/view/27085979/

Slot's:
1.
2.
3.
4.
5.