How does Bless work?
I'd think again about 'saving time'. 

While you're cloning it - however you do it - the chances are high that the work actually been done at the same time won't get cloned. To ensure it does, you'd have to clone it again...

I'd just prepare for 2 hours downtime - or wait 'til bedtime - use Carbon Copy Cloner to clone the old drive to the new [that would probably be easier in the Mac Pro, just in terms of physical access, unless you have an external USB/SATA drive adaptor], then just swap them over.
It will boot &amp; you'll be back to where you were 2 hours ago, but with a zippy new SSD. It will also make a new Recovery Partition on the new drive.

A little trick to make the swapover easier...
Before you clone the old drive &amp; while not booted from it, rename the old drive to whateverNameOld, then make sure the new one is GUID/HFS+ &amp; named whateverName.
Once the clone is finished &amp; swapped back into the MBP, the OS won't waste any time at all trying to figure out where everything went.