Its possible but you have to change a lot of things. honestly you only can reuse A1369's display ( but the camera can not used because new HD camera has different connector) D case with keyboard (C case, but without light of keyboard) So, that is not useful option.
A1369 can be upgrade to 2011 /i7/4G mid with small adjusted. to avoid 2011-2012 model because that either uncompiable with A1369 or A1466 2013 model.