DO NOT attempt to cape, gut, skin or do anything to the bird ! Get it frozen whole or to your taxidermist ASAP.
Not wanting to be disagreeable, I will state upfront that, if someone has the option of freezing their gobbler and getting it to their taxidermist whole, that is probably the best thing to do. The problem with making that blanket statement is that some folks that read it may make the decision not to have a turkey mounted that they would like to have done because they are not able to get the whole, frozen bird to a taxidermist right away. I would like to reassure folks that they have other options IF they just take the time to learn them.
The quoted statement makes it sound like there is some sort of rocket science involved in learning to cape a turkey. Frankly, there is not. The process just isn't that difficult. As one who has mounted around 100 gobblers and caped probably another hundred for others, I have some level of confidence that anybody can do it.
Bottom line in this comment is that, if anybody that reads this kills a gobbler that they want to have mounted but can't get it immediately frozen and to a taxidermist, you should be aware that you have other options. Caping a turkey for mounting is, quite honestly, simple and easy. Learn to do it yourself (you can practice on gobblers that you are not planning on having mounted to gain the confidence needed to do it right).
Simply stated, a caped gobbler is much easier to deal with in terms of keeping in condition for mounting IF you don't have the option of getting your whole/frozen bird to your taxidermist. Taking the time to learn to do it yourself will eliminate any thought that you will not be able to have a bird mounted because you can't get the entire bird to a taxidermist in mountable condition.