I have quite a lot of DJI bits and pieces and, having added a Phantom 2 body to my collection (with the original intention of transferring all my Phantom 1 internals to it to get more room for batteries) I now realise that - other than a set of ESCs I have most of the things I need to build another machine. However, I don't have a spare "Phantom" GPS or compass (nor do I fancy spending £132 on buying them) but I do have a couple of spare GPS modules from DJI Flame Wheel kits. After taking one of the modules apart I was surprised to find that the circuit board holes were in exactly the right position to fit the lugs on the underside of the Phantom upper body. As you can see I have also used the lower part of the Naza housing to help secure the module in place and protect it from physical damage. My plan is to equip my spare parts Phantom "SP" with a Naza V1 Flight controller, V2 LED (I know that will work) and a V2 PMU - obviating the need to incorporate the circuit board on which (normally) the Flight controller sits. I will use the standard ESCs - which I will need to buy (I like the LEDs). I also plan to use a Spektrum receiver so that I can control it with my DX8 transmitter. Most of this will sit on a carbon fibre platform occupied the space normally taken by the circuit board. My major uncertainty however is whether or not the combined GPS / compass will work okay (since on a "real" Phantom the compass is mounted on the landing leg). Or is there a good reason to have it sitting atop a carbon fibre pole as it did when fitted to my old Flame Wheel? Any advice on this plan would be very welcome.