[crummasel]

What Bruce said.
At least you know you have a limited time window when using 574.
But its doable as long as you work quickly and concentrated.
So lock the door and but the telephone into the fridge.
Organise yourself with all the parts you need and all the tools so you do not have to search and put the exact number of parts you need onto the bench.
If you want extra peace of mind do a test assembly (dry, no Orings (bear in mind they will need extra time)) to check your time. That way you can also check if the crank binds when halves are torqued.