Suggestion-I have used a good quality buckskin on Redtails for years. Cut it a little larger than needed then grease it well as it will stretch. The price is very reasonable. You can tan it yourself also.
If you guys need more info then that just visit www.tandyleatherfactory.com and read the leather buying guides. I have ordered from them many times and the service has been excellent every single time, and if you don't find your answer just call them and explain what you need and they will help pick the best leather for the job.