where do u buy one of any of these pumps?

Auto parts store.

transmission fill cap ?
 

I bought my son his first car, 1987 Mazda RX7 non turbo. We just put the tranny back in after doing a new clutch job. My son left his manual at school and I am trying to fill the tranny back up with fluid.
My question is, I see the drain plug, then above that on the side the check plug. When I feel around for the fill plug (towards the top drivers side of the tranny), I feel two plugs. One right above the other, so, I tried a 14 mm open end wrench (someone said it was 14 mm I think) and as it turns out, feels like both are 14 MM.
I am unsure which is the fill plug. The two plugs are about 1/2" or so apart, very close to each other. The top one seems to be in a raised cast round area and the other (lower of the two) flush mounted.
I seem to have seen somewhere on the forums that someone said do not remove the recessed or countersunk , or something like that .. plug

So, which plug to I pull to fill the tranny

thanx

I just took a spare coolant overflow hose and ran it into the inspection hole. Pour it until it starts coming out then quickly cap it. Make sure to put a bucket under the transmission unless you want to soak the nasty fluid into your floor. Wedge a funnel onto the top of the hose and wedged that between the engine and brake res. Then I just very slowly poured the molassis... ehh hemm... transmission fluid... into the funnel. Took 5-10 minutes to drain. Easy. Cheap. Got the job done.

And is it just me,... or does the fluid smell like rotting cheese?

I'm planning to drain/fill this tomorrow and am thinking to myself.. the solution that keeps me off the 31 degree driveway in the quickest time is going to win..