The Lionel 6-28311 is a Legacy DD35. You have multiple issues if you want to run this beast. First, I don't think the CW-80 is going to cut it, powerwise. Second, it is rated for minimum 042 curve but recommended is 054; your outside loop is 036 with 048 easements - I see derailments in your future. Lastly, while the DD35 will work in conventional, you really won't get the full effect without a legacy control (appx $400). Your two Lionchief units will work fine on this layout.
Good luck.