Couple of things to think about.
The C14 has a much longer focal length, which makes unguided imaging more complicated (probably) than your refractor. You will probably want to use a focal reducer, or maybe even a Hyperstar.
You may have to deal with mirror flop. One option here is to add a Crayford focuser for fine-tuning of focus and then lock the mirror.
You will possibly decide you need a beefier dovetail bar and tube rings to create a more stable mounting solution.
This is not just idle speculation. I've been there, albeit with a CGE Pro, and ultimately had to do all of the above.
All of these add weight. With your OTA, a focal reducer, a Moonlight or other Crayford focuser, mounting plate and rings, a finder scope, a camera, various cables, etc. you are easily pushing or even exceeding the capacity limits of the mount. That payload capacity (50lbs) isn't even what most experienced observers would employ. For a Celestron mount they would limit the load to 50%-60% of stated capacity. You will be way over that.