We live across the street from Ala Moana Park. The marina you see in the pic is behind the Ilikai, down the street a few blocks. This is the hotel/marina that you see in the original Hawaii 50 TV series. In the background you can see Diamond Head Crater, kind of a famous landmark here.
I rented a 400 sq ft space a couple blocks away. not much, will be tight, but should get the job done. Best part is I can walk to work and to my "shop"!
My two car garage is just over 420 sf and I'm building a GTM in it. So you should be fine. Your body is a set of panels that should not consume much of your footage.
R/s
Vidal
CURRENT STATUS: Interior Rework and Bodywork.
GenII GTM #331. Delivered (23/9/10)
BUILD LOG AND WEBSITE: http://gtmbuild.weebly.com/ .