Does anyone have any advice for elk?
Yeah. Any beef stew recipe seems to work well with elk...just add a little extra fat. LOL
Other than that, most fences that work for deer should work for elk.
A common remedy is two fences about 5 feet apart.
A deer can jump high, and a deer can jump long...but it cannot do both at once.
The space between the fences does not allow him to get a running start on the inner fence.
(I have known people who used this technique. They loved it because this year's freezer deer was conveniently trapped between the two fences. A short packing hike to get him from fell to the freezer.)