Going off the setup on the car pictured, looks to be alot of work for a street car...
It will also require moving the fuel tank.
And if you plan to drag the intercooler back there as well, i suspect alot of lag will be induced.
If you are really thinking about doing this, i would actually consider moving the firewall and engine back, to get better weigh distribution, and do a proper v setup in the front.
Seems like similar amout of work, for better results.