Sorry, no pics available. I tried to write my response to be descriptive enough for others to do the same. Trust me when I say it was really easy and once you remove the first piece of plywood plate you'll figure out exactly what you need to do. BTW, even after modifications I used the same tank that came with the kit. As far as weight additions, probably not much at all was added and maybe even some weight loss??? Remember, I took out three pieces of plywood (1 top & 2 sides) from the air/exhaust chamber. I also dremmeled out some of the existing former (you'll see what to do when you open it up). The only additions I made were to use 4 Popsicle sticks (cut to correct length) which I epoxied in to create the new ceiling for the tank. These also replaced the strength (may even add some?) of the cut away former. I added some cut up pipe insulation foam to place around the tank to isolate vibration (this stuff is very, very light). The monokoted balsa hatch cover couldn't weigh much at all. Finally, closing up the old firewall hole was done with 3/16 balsa which was light too.