OP:
Is it really going to be worth the money to you?
(It's not going to be cheap).
My suggestion:
Take a good, critical look at what's on the MBP drive -right now-.
Then, get a fast external SSD (like the Samsung t5, 500gb), and "off-load" stuff that you don't really need to have around on the MBP drive to the external.
Could save you money... and trouble.