727 front pump/bushing help

I need some help from you transmission guys, as I have never jumped into a auto trans before.

I have a 727 with about 1500 miles on it. It was rebuilt quite a bit (years) before I fired up the car. When I fired the car last year I had a very small front seal leak, it has gotten worse so I pulled the trans to replace the seal. In the process of pulling the seal with a cheapy puller I got from a local parts store, the seal puller broke and the recoil put a scratch in the torque converter hub bushing.

I am planning to repair this myself to save cash as I see a OD in my future.

My question is this, can I pull the front pump without removing the pan/valve body or disrupting
the input shafts? The only videos I have found online of a 727 rebuilt show the pump coming out after the tailshaft and valvebody removed...

I was gonna pick up the front seal, bushing, and pump gaskets... What else do I need or should I plan for in this process. I have a friend with trans and bushing tools who has built some Chevy trans but no mopar experience.