PLEASE............
Do not register your aircraft until it is getting very close to being finished.
While it works out for a few, for every 1 that does, there are 9 that don't.
I've been certificating these aircraft for 16 years and I've seen my share of unfinished aircraft tied up in red tape. Builder sells project, builder passes away, etc.
P.S. 962TM shows to be reserved but not assigned. Being reserved is fine.