Thanx all for your replies,
as for my weight 9.8kg, well i did not install some things just to make things lighter for the maiden and then add them later on.
the things i didn't install are
1. Cockpit
2. cylinders and locks for operating canopy (just installed a hatch lock)
3. wingtip missiles and rails
Bob, thanx for your advices, ill start working on it this weekend. i checked all leaks and so far am lucky cuz the only leaks i have are on the door cylinders and its not major too. the landing gear is working flawlessly from 100psi for about 4-5 cycles.!!

am using the flyeagle EV5U for brakes, doors and gears and using airpower EV2U on mode3 for main retract cylinder lock.
Wessa, maybe 8kg is for the standard version airframe only!! dont think 8kg possible on this advanced version.
am planning to use old P80, i guess 18lb thrust, is this critical?
KAON