The LM0034 has diversity, meaning that both antennas are used for signal reception, creating less of a chance of dropping the signal. Spend the couple bucks extra for the diversity, if you can; it's worth it.
It should work fine, but I would definitely go with the LM0034 with diversity over the LM0029. The Spektrum 4 channel is $30, vs what, $16 for the Lemon? And it's a foam plane, so...
I've got an LM0029 in my Nano Goblin, and it works pretty good, but I have to remember to hold the radio up better for transmission to it.