aaron, VE tables are a slightly different arrangement to the fuel tables that the nissan ecu uses so not sure the info i have would help, but that depends on the arrangement of the VE tables.
For example in the Nissan ka24e/de, there is a basic fuel map which controls injector pulsewidth based on maf and tps. There are other elements such as vq maps and pulsewidth limiters etc, but the main fuel control is on the fuel map
in the mini, I have a VE map which sets the volumetric efficiency based on the map sensor and tps. Then there are the equivalent of the Nissan vq map for the map sensor and so forth, so mostly the same, but then there are another series of maps that then fine tune the pulsewidth of the injectors on top of the VE maps and all the other information and then to confuse things further there are learned maps in the NVRAM which will adjust the maps based on information from the o2 sensor.
so, the reason I bring this up is, for the vq map, do you have any other secondary map for fine tuning? Also are the values the % of volumetric efficiency? i.e. high load high rpm you have 135% efficiency which is probably what you'd see in a boosted application, pretty sure you can’t achieve 135% VE on an n/a although adam can correct me if i'm wrong maybe.
Further to the VE map question. Are you using both the VE map and the AFR map? Or are you supposed to just use one or the other? My reason for asking is if you are installing a wideband sensor which will then give information back to the ECU to in turn adjust fueling based on your AFR map, then what is the point of the having VE map? Check through your user manuals and what not and see if there is something that tells you to run one or the other.
your afr table looks safe, it’s definitely looking like a good start. Once you get the car up and running you might be able to run it a little leaner but not much more.
For timing, figures will also different, so if i give you the figures from say, a stock ka24e, the spark table is multiplied by either 2 or 2.5 (can't remember which) on the ka24e ecu. the ka24de ecu is a 1:1 value for spark. That though shouldn’t be too hard to deal with. you will probably want to dip down the advance in the low load low revs area of the spark advance map. my memory isn't great either but i remember seeing advance as high as 42 degrees in the high revs high load areas of stock ka24de maps. i'm at work so don't have any tuning gear with me, you'll have to wait until the weekend when i'm home.
i am also used to looking at maps in 3D to help with with a visual, can you get a screenshot for in some kind of 3D view?