That's a question that only you can answer.

If you were buying yourself a new fun-car, would you rather have a brand new Corvette or a resto-modded muscle car for about the same money?

If you picked the Corvette, buy yourself a new bike. Every single part will be brand new and it will also come with a new bike warranty.
If you picked the resto-mod, start shopping for components and taking your old bike apart. Might as well go for a new powder coat job on the frame while you're at it.

It's your bike. The only way you can screw up the decision is by doing what somebody else tells you they would have done.