Well, assuming the following line-up for the Bears:
Jenkins - Whitehair-Mustipher-Daniels-Ifedi
By draft round you have:
2nd-2nd-UDFA-2nd-1st
So, Mustipher would the current find that would be the only outside the high pick status.
Generally speaking, it is easier to find interior and RT talent later in the draft. Although arguably, the RT is becoming more and more important and hence needing more investment earlier.
My impression of Borom is that he could use a year of NFL level weight room and nutrition work to get himself in the size, weight, strength that you would want for a RT in the NFL. I want to say that I read a quote from Castillo that he wants Borom to be around 330lbs. He appears to have a good base to work with, but he does need work. He was a 5th round pick for a reason. I like the pick, but it will take some time to develop him.