Tom,
That is great news! And, good info on the ability to use the same carrier for both 3.5 and 2.5" drives, making it an easier task to convert from HDD to SSD.
Remember to do that process of Disk Cleanup, and thereafter Error Checking (with both boxes checked) soon. That tunes up your SSD (and HDD) and I do both of those steps monthly. With SSDs the Error Checking is so much faster than with a HDD. Don't forget to load the latest Intel Toolbox, 3.3.3, and tune up your SSD with that now.
For those who are not familiar with Acronis it allows you to build a bootable removable media (I use CD media because I can't accidentally erase or modify those). I have one that almost always works, built from the Linux boot OS approach. That has seen a small number of HP workstations where it could not boot from the particular HP optical drive in place. In that case I use my second CD, based on Windows OS boot, and that has never failed me. The first is faster, however.
Note that there are some HP optical drives that I have seen that are not able to even load W7Pro64 from the Microsoft official system builder DVD. That is very rare, but it does happen. In the older HP workstations that came with IDE optical drives I seem to never hit that issue.... only on some older HP SATA optical drives. It has to do with the driver for those just not being available on the DVD, or the optical drive having a firmware that is incompatible. I have cross flashed a particular HP DVD ROM from HP to Dell firmware update, and that let it work properly in our HP workstations forever after. This is a tip I've posted about every once in awhile because it is so odd, and good to get out there.
If you have any pictures to post of that one size fits all drive sled it would be nice to share that. I truly feel every workstation booting off a HDD should actually be converted over to SSD now, so taking that issue off the table may help others go ahead.
Finally, I wanted to let you know I did the experiment here for you: I burned my .iso of my favorite Acronis bootable CD over to a thumb drive. Also hooked up an external external drive using another USB port. I booted off the Acronis USB drive, with a good bootable W7Pro64 HDD inside the workstation, targeted to the external USB HDD, saved the Acronis image, swapped in a spare single partition NTFS long formatted SSD, booted from the Acronis USB thumb drive, and burned the image onto the internal SSD. The outcome was perfect, with the system-reserved and the main partitions from the original HDD working on the SSD now..... the original HP OEM COA (activated on that original internal HDD) works just fine also on the clone internal SSD without any need for reactivation.
That process lets you avoid having your original Z1 HDD in place and a SSD hanging outside simultaneously.
Scott