I did my own Spit! It´s a Vb version, and it was much cheaper than those in the link... (and a little bit smaller too... ) %)
that's a nice looking plnae, & the 2500'/min climb is impressive, however, you're going to build a kit, why not one with spitfire perfomance? cruise near 300kts, climb 5500'/min, 190deg/sec warproll, but cost is about twice the supermarine's