The first 2 receiver packs you have shown in your pictures you will have to make sure that the lid of your receiver box will fit once these are inside as you will find them slightly larger than the receiver pack in picture 3
I use to run the larger ones but for me to do this i had to go and purchase a dome receiver lid which allows these receiver packs to fit inside radio tray and the lid to be closed and fitted properly;
Apart form this little gripe you could choode any of 3 of them
Hope this helps you a little
Crtpromachine
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