Regarding the leftover vero pieces, I´ve got enough for tiling 3 bathrooms...
I use to buy veroboards from tayda, (the big ones), whose will let me build a couple of bigmuffs and stuff like that, but I always end up with small larger than taller pieces of vero.
Someone menctioned above the deviever stuff; Hyperion, and Sodameiser layouts, (and all their variants), are great for that size.
One knob fuzess are very nice as well.
Loved the nagaviper; silicon rangemaster clone with input cap blender tone control, which is great for tuning your own frequency response.
Take a look to the Lovepedal stuff. They have a bunch of tiny boards too.
And if you are planning on building pharaoh/LSTR fuzzes, don´t miss this: