Hi, i can do the migration perfectly for you.
have migrated many many websites.
After migration, the content of the sub domain and root one will be 100% same and intact. ( This is indeed basic common sense. )
I can start the migration after 6 to 7 hours as its late night here.
Can complete the migration in 1 hour . As my internet is 100 MBPS
If you have nay doubts, please chat with me.
may i ask, which hosting is it ?