Let me share you one of my experience about this which might be helpful to you.

A year back, I was also in the process of transferring and I didn't have any attested copies of my transcript left with me. When I contacted the university about this, they told me to send them my original copy and that they would return them back after making the copy by themselves.

If you talk about this with the office of admission, may be it works.

All the best.