Late to the party!
I know this post is 4 years old but I came across it while googling and wanted to solve the mystery. I had that exact same bundle, here's the photo of it with my CPU back in 1993: https://dl.dropboxusercontent.com/u/10903383/ … %2013.51.30.jpg
My dad passed away last year from cancer and that kinda got me on a kick of certain things from my childhood. He had bought me this Packard Bell when I started high school and it totally took over my world. I ran a BBS on it for a few years, put Linux on it with a terminal next to my bed at one point, upgraded it, took it apart and put it back together a million times, etc. It was one thing that he, being a hobby techie himself, and I shared and I really enjoyed growing up.
Unfortunately what I've come across is that the 725DX model is REALLY hard to find. I want to have that exact setup in the photo. Odd request, maybe, but I'd really appreciate any help or leads anyone has. I did just see the keyboard brand new on eBay for like $75 which is a BIT much...I'm probably going to have to put this together piecemeal. I don't want to necessarily spend an arm and a leg on it, but we'll see.
This is sort of going to be my side project to try and wait it out and get that EXACT setup. I remember it well. I'd love to find that bundle again in pieces even. We also got a Cyrix 387 co-processor for it.