Measurements needed help please

[mark100]

what is the total lenght nose to tail and what are the widths front and rear with the widest tyres on ? and the distance bettween the road contact points of the tyres front to rear im after building a trailer (as small as possible ) for the roadster and practiseing my welding on that before i get my chassis kit Ill bolt the trailer to just to make sure but i need it to fit down the side of the house so space is an issue and a normal size car trailer doesnt fit my car will be for track use only so it will live on the trailer most of the time when done any help please so i can go get an old twin wheel caravan the right size and start work now funds are in place ive got an ich to scratch my tools are getting dusty since i just sold the imprezza im even working to work till i get a good tow car.