Most of us just use the front seat from the older savage models, when the rider seat and pillion seat were separate. This way you don't have to fabricate mounts, they will bolt right on. Just be aware that you'll have to move the rectifier which is mounted right under the stock pillion seat. Here's a pic of my bike, to give you an idea of what the older savage seats look like:
If you have any questions, feel free to ask.
P.S. Sorry if I dumbed this down too much for you, I have no idea how much of a wrench head u are. LOL.