thanks for your replies !

1) are the original pushrods flex ?

2) any picture of how to open the cowl ?

3) how about picture of reinforced landing gear ?

i'm not going to have "high end" stuff in it like you guys using what i got : OS 70 4 stroke , and for servos whatever i have laying around here... i got 2 old Hitecs 545BB (61 oz / 76 oz , .22/.17 sec) for ELE or RUD and for the ailerons Futaba 3001 i hope that is good enough ....

after all the ELE is driven by TWO servos , so i would think almost every thing will work there. Rudder probably more of an issue .
or maybe i should "steal" FUT 9202 from my Heli throttle for the Rudder (76 oz-in @ 4.8V - 98 oz-in @ 6V).

by the way i used to own Kangke Fun 50. and it was AMAZING plane. in my opinion Great planes where "inspired" by it and came with their own version , the UCD.

ONE more thing , my friend at the field strongly recommends me to install the engine sideways for those reasons : he said that the way the fuel tank is mounted in the plane , side ways works better. OR i should change the hight of the tank. easier to start the engine not getting flooded. in case of flame out while hovering and crashing strait on the landing gears , i won't hurt the 4 stroke heads.
but i'm not crazy about his idea , that won't look that great through the cowl ...