I'm buying the Rc10Gt plus next week and I'm wondering which of these powerfull killer 0.12 engines will work best/fit??

1) Team Orion Wasp .12 Turbo
Horsepower: 1.5bhp @ 38,000 RPM
http://www2.towerhobbies.com/cgi-bin...?&I=LXCJZ6&P=0

2) Trinity Sirio .12 EVO 2 3-Port ABC Threaded Shaft
http://www2.towerhobbies.com/cgi-bin...?&I=LXGGL8&P=0

3) Trinity Nova Rossi .12 Long Stroke Rear Exhaust
http://www2.towerhobbies.com/cgi-bin...?&I=LXEPH5&P=0

4) Trinity Nova Rossi .12 Turbo Slide Carb
Power: 1.5 HP RPM: 38,000
http://www2.towerhobbies.com/cgi-bin...?&I=LXDUH3&P=0

5) Trinity Nova Rossi .12 (I like it but would it fit?)
Horsepower: 1.52 HP @ 41000 RPM
Practical RPM Range: 3800-43500
http://www2.towerhobbies.com/cgi-bin...?&I=LXFBD6&P=0

I would like this engine for competition purposes. . . .and have the stock 0.15 just in case