Did you ever do the calculation on what the current draw is of your setup? If you have a multimeter, you can even measure it directly.
Unless you drive in the depth of winter, your heated vest, gloves and socks will probably never be on high all the time, so their current draw will be a lot less than whatever it says on the label. LED lights don't use a significant amount of current either. You may well find that everything is well within your energy budget, and you don't have to mess with the wiring at all.
And if you find that your are not within your energy budget, then cutting out a single headlamp (lo beam) may not provide sufficient relief anyway. I don't know specifically for your 2012+ 650, but the average V-Strom seems to have a charging system which can provice a maximum of 400W. A single H7 light bulb is 55W, so that's just 13% of the available budget. If you're 20% over budget, cutting a single headlamp is not enough.
If you want more detailed advice, look up the nominal power draw (in W) of the accessoires that you added. We should be able to find the power draw of a stock standard 650 as well (fuel pump, ECU, standard lights etc). From there, we can see if cutting a headlight makes a difference.