THE PLT REPORTED THAT BEFORE LANDING HE APPLIED CARBURETOR HEAT & EXTENDED FULL FLAPS. REPORTEDLY, HE MADE A STEEP APPROACH TO THE 3000 FT, SOD RWY. HE SAID HE OVERSHOT THE 1ST HALF OF THE RWY & TOUCHED DOWN AT ABOUT MIDFIELD. AT THIS POINT, THE PLT INITIATED A GO-AROUND. INITIALLY, HE APPLIED FULL THROTTLE, REMOVED THE CARBURETOR HEAT & REDUCED THE FLAPS TO 30 DEG. THE PLT STATED THE ACFT ACCELERATED SLOWLY & SETTLED BACK ONTO THE RWY WHEN THE FLAPS WERE REDUCED TO 20, THEN 10 DEG. THE ACFT PASSED THE END OF THE RWY WITH 10 DEG OF FLAPS. THE PLT WAS ABLE TO PULL UP & CLEAR TREES & A POWER LINE. AFTER CROSSING, THE OBSTACLES, HE LOWERED THE NOSE, THEN TURNED TO AVOID A HOUSE. HOWEVER, THE ACFT WOULD NOT CLIMB OVER THE RISING TERRAIN. THEREFORE, THE PLT ELECTED TO LAND IN A PASTURE, BUT THE ACFT HIT A LOW VOLTAGE LINE, THEN AFTER LANDING, IT HIT A STUMP & NOSED OVER. THE OWNER'S MANUAL RECOMMENDED ZERO FLAPS FOR TAKEOFFS OVER OBSTACLES.