colodak - good suggestions. I own air grinders and sawzalls and have no fear of using them.

Just need to find appropriately sized windows. The windoors may be interesting as they are actually double walled - about 1" thick so will need some kind of inner trim ring to keep it looking clean. The front section is single wall so should be an easier arrangement.
thanks redthies. Seems harder to find toppers/shell/campers that fit our year trucks.....at least in my area.
nevada - yes, exactly my plan. I picked up some magnetic strip yesterday to start experimenting. The only "gotcha" on the windoors is that the strut will need to go through the screen. I have some ideas but open to thoughts.
thanks dango. I checked out your budget builder thread......the chevy looks good. I didn't get my topper free like yours but at only $250, it felt free enough that if I change direction, it's a non-issue. I''m also throwing around an idea of cutting the top and making a pop-up but would still want to support and be able to lift ~150lbs of kayaks and rack (longer term idea) . I have started some insulation and carpeting - my typical camping and traveling is usually more in heat than cold - ventilation is as important as insulation and cold is easier to overcome than heat IMO. I welcome your thoughts on insulating.