Hi ive ordered a omnibus F7 NXT board shouls I have gone with the F6 nano any thoughts on this,thank you,Marty
The NXT is no good unfortunately, it only has 512k flash. You have to get a board with 1mb+ flash.
If you disable a lot of features, using copter.h file, it might work 
Yes like flying, navigation etc As long as you just want to hop from one place to another manually it would be great 
So what board do you recommend please and thankyou
Check out boards on here:
http://ardupilot.org/copter/docs/common-autopilots.html
I use the Matek F405-Wing for a small quad. Yes it’s marketed as a plane FC, but it’s perfect for quads as well as it has built-in BECs to power just about everything you could want. Makes for a super neat integration. It’s well supported in the new ChibiOS builds.
Ive got an omnibus F4 V3 and a Matek 722boards here,or should I just go purchase a Matek F405-wing would rather start out on the right road
First you need to look up the precise MCU variant used for those boards and see if they have 1mb flash. Then see if they’re supported in the new ChibiOS builds (https://github.com/ArduPilot/ardupilot/tree/master/libraries/AP_HAL_ChibiOS/hwdef). If not, and you’re not into rolling your own code, I would strongly recommend you get a board that is already in the docs (http://ardupilot.org/copter/docs/common-autopilots.html) and known to be supported. Otherwise you’re in for a lot of fiddling, soldering, coding and swearing!