I use an EMS gear & door sequencer. Just $38 at Tower Hobbies. It can be setup for gear doors that remain open when the gear is down, or setup for doors that also close after the gear is down. It also has an adjustable delay between door and gear deployment. Been using these for years. Never had a problem, and each one I buy saves me at least $70 over any other brand sold by the jet companies.

Made for Futaba as well as JR.
For JR ...
http://www3.towerhobbies.com/cgi-bin...?&I=LXCJE1&P=7

For Futaba ...
http://www3.towerhobbies.com/cgi-bin...?&I=LXCJE0&P=7


Good news for you, siddus74, Tower Hobbies ships internationally.