Another Harley guy here ... potato potato potato ... there, that's your proof. LOL
I have a TC88 from earlier years of this century. If you don't like the cam chain tensioner, you might as well replace it. At 30k miles, that's not a bad time. And it's not as bad as others make it out to be. Light a nice cigar (Churchill) and if you pay more attention to the motor than the cigar, I guarantee the motor will be finished first.

When I turned it into a cafe racer a few years ago, I've gone through my engine, bottom up. Installed a new tensioner, took a few minutes only because I had the case split already. Either buy the tensioner tool or make one. Not hard at all. Grind out a piece of pipe, attach a lever and you're GTG.
And while I was inside the motor, I marveled at the incredibly sophisticated dampeners inside the crankcase. It really helps with the motor vibration. This is not the typical shake-your-fillings-out HD motor.
If you are not concerned about the aesthetics of the MC, consider the condition of the frame and motor. Those are the most important pieces. Unless you are swapping those out too.

With an EFI motor, you don't have to worry about the bike sitting a few weeks and fuel gumming up the carb. But if you make any airflow modifications, you will need to re-tune the motor.
What will you turn the project into?