I'm looking to make my own rising card gimmick (style of Devano or Galdini) for a specific deck of cards. Are there any instructions or tutorials out there for sale on how to make your own?

Good luck with this.

Are these rising card methods different from those describing in Tarbell Vol. 2?

There isn't a one-size-fits-all solution. Over the years, dozens of variations have evolved. However, if you're serious about creating your own and have understood the principle, you'll surely come up with your own ideas. Since you mentioned the Devano Deck and Galdini, you should be familiar with the principle, so it shouldn't be too difficult to make certain modifications or adapt it to your needs.

For the time and effort it might take may I suggest http://www.martinismagic.com/ for a tried and tested inexpensive prop, albeit in bicycle (Martin is most accommodating and may even use a deck you send him) There is also a Ron Bauer booklet on Don Allen and the Devano Card Rise with some basic crafting instructions
Ciaran

Oops ..... Don Alan

Hi, I made a rising card deck a number of years ago. It had 3 different cards rise and to go along with the "story" (or patter) to go with it. I thought it different than ones I had seen. It did have one flaw, but I think that is correctable. If you would like to know what I did you are welcome to send me a PM me . I think it would be too long for a post.

Don Alan's book is here: https://www.penguinmagic.com/p/17570

You can easily find the PDF of this book for free on the Internet. I don't know whether this publication is legal or illegal.

IMHO, if it is free, it is probably a scanned and shared PDF without permission, especially since it is still available for purchase.