need help - underdeck

Hi everybody! I am coming from Croatia and i'm glad to see that very nice forum I have one underdeck and i wish make into studio and need help about design. Bathroom, Kitchen or WC are unnecessarry; there is a plan and http://www.inet.hr/~darkkran is some photos Any sugestion and ideas is welcome p.s. sorry on my english :oops:

Mark up your diagram (in red maybe??) showing us roof ht's at various positions (floor to rafter) This will aide us in assisting you :)