Welcome to the forum! You've come to the right place to ask your questions.
The main problem I see doing a bar swap on the Ultimate is the control cable length. Remove the 4 screws from the stem cap and try raising the bars 2" or so. If there is enough cable slack, the Jones H bars should fit the stem but I would measure the diameter first to be sure. You can extend the control cables but it's often a difficult job. You will also have to relocate the headlight to the new bar somehow.
Another way to gain bar height is via a stem riser. You will sill need cable slack but since you would reuse the Ultimate bars, you won't have to relocate the headlight.
Good luck with your project!