The first one may be quite complicated if it really does what it says, but the compressor shouldn't be too dificult to build yourself, never made a compressor so I couldn't tell you how but if you search on Google you'll find plenty or schematics.
When you made your mid boost did you use an LM386 (or other 386) chip? If you did, or you're familiar with this chip, you can make your own distortions simply by experimenting with different diodes in inverse paralell across the gain lugs (1&4).

LM386