Scaling easel project larger

Hi, I have successfully cut this model as a test and to learn

Now I want to try to make it larger. What is the best way to lay out the pieces in easel so as to have the cuts still fit together?

*I also have not mastered cutting right depth and tabs so I sometimes ruin my cuts when they come loose. Any advice on that appreciated. If I specify depth of material, is easel cutting past that or exactly that?