You guys sure found a bunch of pictures of prototypes! Some of those are obviously very early, earlier than any I have seen. Now you know what a Mac looks like with a 5.25" disk slot (suitable for a CD drive). It would be cool to build a modern Mac into that Lisa chassis if you can't find parts to restore it.
If you read closely, I didn't say Burrell designed the Sony drive, I said he designed it IN. I meant he designed it into the Mac. I could have phrased that better.
The Sony drive caused a bit of a problem when Apple held a programming course for the (pre-release) Mac in Palo Alto. The teacher offered us copies of his sample disks, which we all wanted, but none of us had 3.5" blank disks. We spread out across the peninsula at lunch hitting all the electronics stores looking for disks. Fortunately H-P had just released an industrial computer which used the brand new disks, and we cleaned out the H-P distributor, $400 for 4 boxes of 10 disks, then split up our cache of disks after lunch so each of us went home with a half-dozen disks of code and demos. Some of the demos were early enough they didn't have a Finder, such as the Pepsi Caps and the Alice disks.
I didn't have and couldn't afford a Lisa, so I adapted the Lisa / Mac programming tools to run on my Apple II and Mac, and my first Mac programs were written on the Apple II, transferred to the Mac by serial cable, and debugged with the serial version of MacsBug. Yves Lempereur quickly ported the S-C Macro Assembler from the Apple II to the Mac so we had a native Mac development system, and the Consullair C editor, compiler, linker, and assembler followed not long after. MacOS was a new and mysterious environment, much more complex and rich than Apple II DOS or PC DOS. Even the "phone book" programming manual didn't help that much - you sort of got the Mac philosophy by osmosis. We all knew the Lisa and Mac were the new face of computing.
The Lisa team's philosophy was different. They didn't offer or want outside developers' help. They envisioned a complete integrated office automation system supplied by Apple. Therefore there was no attempt to recruit developers, in fact the Lisa OS was considered a trade secret.