Hi,
i've been working with unity for 2+ years now, mostly doing mobile/web reskins as a freelancer and developing android games as part of a 2 man team.
If i understood your description correctly, you only need me to implement the code for the block animations?
If that's the case i could finish that in roughly a day for you, depending on your current game code.
If you're still looking for someone and you want to know more just message me either here or on skype(mh5414).
Thanks for your time,
Marvin