The intended way of doing this, is burning the ISO on a dual-layer DVD. I assume you don't have one of those. Luckily, there is a lot of other ways of getting there.
I did read your note, but you can install the version without the dev tools, and then get the full VS 11 preview from here. (the one included on the Win8 DVD download is just an express version, you can try the full version). This might be the easiest way to do it.
Another way would be to download both versions (with and without Dev Tools). Then burn the version without tools onto a DVD, and copy the files on the other DVD to your HDD (on a partition you will not install onto). Boot on the DVD, get to the recovery command prompt, then execute Setup.exe from the copy you copied to the HDD.
One way to get a command prompt is to press Shift+F10 on the screen where you should select the disk to install to (Shift+F10 probably works on the other screens too, haven't tried it though). Then just shift to the directory where you placed the install files and execute setup.exe. Depending on the location, it could be:
> cd Win8Install
Btw, be aware that drive letters might have shifted in this environment. If the files is not on the drive letter you expected, just try looking through the disks starting from drive C: