Thonk Skiffs
Interestingly named UK based budget case manufacturer who ship worldwide. Thonk also supply the world with a whole manner of DIY module kits if you're willing to get your hands dirty.
104HP 3u option - http://www.thonk.co.uk/shop/thonk-104hp-skiff-and-4ms-power-bundle/
DIY option - http://www.thonk.co.uk/shop/thonk-104hp-skiff-and-synthrotek-diy-power-bundle/
Prices:
non DIY = £143.67 on sale now! 10% off
DIY = £62.49 on sale now! 10% off
Older Music Machines & the People Who Still Use Them
Revisions that turned synths into brand new machines