Not familiar with 1080...but pretty confident it would have to be modified to fit a T-top. (Although my 1801 does have the higher console (electronics box).)
Navy blue cover...Best material offered by Boatcoversdirect.com..(Roughly $400 new). This cover is about 2 years old, rarely used and in A- condition. Made for 1801 with high bow rail.
Hope this helps.