If you haven't done so already I strongly recommend attending one of their
Information Sessions. I know they go into great details to provide a good insight into the program and their admissions.
For the Clinical Placements they have placements in BCS as well as Houston, BCS is just too small to accommodate it all so students do travel to Houston for their placements. This is something I know gets asked and if something you have question on will be responded to if you attend an Info Session.
As for prioritizing current students, I know they take into account
Regional Residency so they are taking into account students that are in the BCS area, ie at TAMU.
But as 380Ag said it is much cheaper to complete the prerequisites at a CC and then transfer.
As for the options on doing the ADN first, that is an option and I know TAMU has the
ASCEND partnership with Blinn's ADN program.
Again strongly recommend getting to a session and talking to them directly, I know they are open to talking and working with students.