I have been using Clinton for quite a while for revelveting antlers, He is the best there is IMO. He will add the veining and round up the tips a bit . If you have pictures that he can match what it looked like when it was freshly killed thats the best bet. I dont think the natural velvet preserved looks natural , it looks dried and shrunken so all the main veins in the velvet colapse and dry so the velvet gets flattened. And the tips are not as boulbus as they should be and sometimes get a raisin affect. But if it was pretty dry to start like just about ready to shed it , then preserving the velvet looks natural.
You can just keep it in the freezer and freeze dry it yourself, just takes longer

There are no freeze dryers I know of locally.
Another thing to think of , the fake velvet looks too perfect so making little knicks in it will make your velvet look more natural if you have it re velveted .