I have a post on the M37 portion that shows the adapters I make for the M37 variants and Power Wagons. I have the dimensions and can make a set for the M715 series bolt pattern. This would be the first and might take a few extra weeks as I machine the first and make any changes needed after beta testing it on an M715. If you might be interersted you should check out the post on the M37 part. Thanks
Bryan
Bryan