Spanish Civil War rules Bayonet and Ideology will be out at the SELWG show (Crystal palace, London) on Sunday, 22nd October. After that date, they will be on sale from the PP website, and from Brookhurst in California at £17.50 GBP.

If you are happy to pre-order, they are £14.50 GBP, and will be posted out before the 22nd. So they should be with you before the show (?). You can also pre-order them for collection at the SELWG show.
This is a set of rules specifically written for the SCW, rather than an add-on to some other period. SCW is unique in many aspects, rather than WWII with less Tigers. Hence, this specialist set of rules.
The rules are replete with company build lists, victory criteria, and war and battle sketch outline.
For the curious, there are a set of videos on the PP site to show some of the basic game mechanisms.
If you are interested in SCW, I do recommend giving these rules a go!
I will post more information to answer and questions, etc..