Gizmo,

Here is a link to the HK electric retracts I used. You'll like them much better then the stock gear I used the struts that game with the kit and they work just fine except the gear doors do not close all the way. It is because the stock struts are kinda thick and make contact with the retracts base. I do not see that as a bing problem because once airborne you will not notice it.

https://hobbyking.com/en_us/servoles...ount-2pcs.html

Good Luck!