You did mention the Navcores but not the emulations used.
And with with most Navcores there should not be any problem on a 700.
From my list you have a stock standard device and none of the ones with modified hardware.
With 2.5GB you can use the modified Truck map for 2GB devices that I posted.
Either with the supplied Navcore or with any of my Navcore installers.
If the standard version does not boot properly install a version for X10 devices - due to the HDD the access manegement for files is a bit different, the X10 versions should compensate for that.
The modified Truck map will leave more than enough room for any Navcore we have plus added voices.
In case you are unsure how to find content like my Truck map:
Check my profile,
click on latest threads on the left navigation bar,
scroll through the results and check the title for what you need.

Downunder35m wrote:You did mention the Navcores but not the emulations used.
And with with most Navcores there should not be any problem on a 700.
From my list you have a stock standard device and none of the ones with modified hardware.
With 2.5GB you can use the modified Truck map for 2GB devices that I posted.
Either with the supplied Navcore or with any of my Navcore installers.
If the standard version does not boot properly install a version for X10 devices - due to the HDD the access manegement for files is a bit different, the X10 versions should compensate for that.
The modified Truck map will leave more than enough room for any Navcore we have plus added voices.
In case you are unsure how to find content like my Truck map:
Check my profile,
click on latest threads on the left navigation bar,
scroll through the results and check the title for what you need.

OK emulation is THE foreign language to me. I don;t know what that means in this context. I simple extract the navcore to the root, unplug whne finished and attempt to boot up as I have done for the past 6-7 years.

I shall reatempt to install the ones you've mentioned and re-follow the instructions

And while at it have a look into the tutorial section as well ;)