Son, go to
www.wildlife.state.co.us
This should answer most of your questions. Elk, being migratory,
are never in the same place long...they move. A non resident trip...counting tags....for you and your dad can cost $1800/2200..counting travel expenses.....this is for a short trip. Not trying to discourage you guys but it is not cheap...even DIY.
On the bright side, it is an experience you will never forget.
Keep in touch.
Dan