Leaking water pump... But not at weep hole.

Hi everyone...

I figured I'd like a little feedback regarding my Barracuda and a leak that has sprung up.

1st, the car is a 67 Notch with a near bone stock 273.
I have added a Champion aluminum rad and a small block Mopar clutch fan. It also runs a 185 t-stat.
The cooling system now has run great the past season with the rad and fan upgrade.

The reason I mention those 2 adds is because I had been battling a low speed/idle overheating condition that looked due to build up in the original rad.
While attempting to unsuccessfully clear that while in the car, I also did several different style flushes to clear it, but with no real effect.

So on to the leak!

I developed a leak at the water pump and due to a trip I'm planning to Carlisle I thought let's just replace everything.

Now, my question is in your opinion, am I just throwing good money away at replacing something that's not bad, because now I'm thinking it's just the gasket that's between the pump and housing that has gone south maybe due to the repeated system flushes.
Obviously, getting it off and taking a good hard look at it will give more info, but what do you all think?

Change the water pump out while I'm in there?

Or save that money and buy something else that I really could use?

Thanks for your time and input!