My new 308 ran great -until it didn't

I was on this fantastic mini road trip Sunday - Marin headlands, Muir Woods, up highway 1 to Stinson Beach then across the hills past Nicasio Reservoir to Novato, onto 37 to skirt around San Pablo Bay and the car was performing gloriously, I was loving it. Then, after adding 1506 miles to the odometer since buying it last month, it sputtered and quit.

Coasting to the shoulder it would start, even idle for a bit but wouldn't take any throttle and eventually quit again.

So, long Triple A story cut short, I finally got it back into the garage and after picking some brains and reading up a bit I pulled the connector off the fuel distributor and turned on the ignition to see if the fuel pump was working. It's running but it sounds like a blender that you had maybe accidentally left a spoon in.

So I need a fuel pump. I see a few options and some conflicting info on which Bosch part number was original (83 QV)

Question for all: if you were going to buy a fuel pump where would you get it?

 

I've found sources for both 69523 (internal check valve) and 69532 (external check valve) both same price ($157 on Amazon) so all I need to do now is figure out which one I need. I suppose best way is to see what is on there now.