Looks like you took over the team I just left. Don't screw it up! (Just kidding).
What you're asking might be a reach for a D3 coach. Top #100 position guys are typically going to be grabbed by D1 and D2 human coaches. As a D3 coach, as soon as a higher division human coach starts targeting a recruit and offers a scholarship, I'll back right off and start looking elsewhere. Higher division humans are nearly impossible to beat in a battle from D3. If its a SIM coach, different story. They can be defeated, but you need to be aggressive with APs and promises early on, and/or with home and campus visits in RS2.
If you look at your roster, you'll see that almost all of your guys were mid 100s for their positions when they were recruited. I think Perez is the only guy who was un-ranked. But I see that SIM finished the job that I started in recruiting session 1 and signed Vern Coffey, who was #67 among centers. That's an exception.
In general, if you can fill your roster with a bunch of mid 100s guys, you're probably positioned for success at D3.
But keep in mind . . . the position rankings, as are the overall ratings, are really just cosmetic. The most important things are the projected core ratings for each guy at the positions you can forecast them playing. Sometimes, an un-ranked guy might end up being a better player than a ranked guy, because his numbers (ratings) and projections are in the right places. So don't focus on their position rankings, focus on their ratings and potential (colors).
Good luck! DON"T SCREW IT UP!