I wanted to build an early Spitfire to get into the RAF 100 spirit so I whipped up the old Hasegawa kit and painted it all with me trusty hairy sticks. I didn't make any modifications or anything. I just weathered it a wee bit and called it a day.
Hasegawa Spitfire Mk. I 1/72 acrylics w/ hairy stick (real world):