You could do it that way, but I would recommend dividing the presets to smaller groups. In your list above, maybe a preset for each of:
amp modeling section, modulation effects section, delay section, FX section overdrive section, etc.
This way you can mix and match presets, and they are much more manageable this way. Six good mod presets can can be used with nine FX presets, etc. If you choose logical groups, the 12 presets per group are prolly good enough. Say you have nine smaller groups x 12 presets per group = a really lot of combinations. One big group x 12 presets = 12 complete settings.
One rule of thumb I use is to keep items grouped in a preset on a single page.