HobbyKing has recently updated their web site making it more difficult to hone in what you are looking for. I was trying to see what was available for 4s lipos, but it was so convoluted that I became frustrated and gave up. Before the web site update it was a simple task to filter 4s lipos and have a long list of what was available shown on the page to see what was available. Now you have to use several sliders to filter with and there are only a few listings per page. You have to go through numerous pages to see what is available.

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I ran across this conversion kit on the SteadiDrone web site.

Transfer your existing electronics, flight controller etc over to an airframe with SteadiDrone's 'rapid deploy' folding design and high quality carbon and aluminum construction, add four powerful top end motors and transform your IRIS into a professional aerial rig! With loads of room for extras like FPV, camera gimbals and more, fly SteadiDrone's high performance airframe and you will never go back. 

IRIS Conversion Kit Includes:

• SteadiDrone DASH Airframe Kit
• SteadiDrone Carry Box with custom high quality foam
• 4 x SteadiDrone MT3506 Brushless Motors

HK NEO-7M GPS with compass for around $33.

http://www.hobbyking.com/hobbyking/store/__55558__Ublox_Neo_7M_GPS_with_Compass_and_Pedestal_Mount.html

Features:

• uBlox Neo-7M module
• 56-channel 
• GPS L1 C/A, GLONASS L1 FDMA
• QZSS L1 C/A
• Galileo E1B/C
• SBAS: WAAS, EGNOS, MSAS
• 10Hz update rate
• 25x25x2 Ceramic patch antenna
• Rechargeable 3V Backup battery
• Low noise 3.3V regulator
• I2C EEPROM storage
• Power and fix LED’s
• Pedestal Mount/Case
• Pixhawk/PX4 compatible
• LNA MAX2659ELT+
• Pre-configured 38,400 Baud and prams 

Specs:
Size: 60x11.5mm
Mount: 140mm length
Cable length: 200mm
Weight: 26g
Connection: Compass 4 pin/ GPS 6 pin (Pixhawk/PX4 compatible)

Thanks to  Jeff Huang for pointing out that the NEO-7M can NOT use GPS and GLONASS simultaneously, but that the u-blox 8 family of receivers will be able to use GPS and GLONASS simultaneously.

I seen info about this on a KAP forum.

Here's the link on the CHDK wiki.

Here's the link to thread on the KAP forum.