lake camp design

We are in the process of designing a 3 season camp (cabin) on a lake. We have a designer but she is unable to help us with the CAD drawings and we're finding significant delays finding someone to do this work. Basic design is attached. The plan is a 24x34 foot single story structure on a slab. (The linen and stackable washer/dryer should be flipflopped with the bathroom sink and mechanical closet.) Thank you!