Hybrid nitrous kit?

I have several different brands of nitrous components and i was wondering if they would work together. I have a NX 10 # bottle, a Zex pressure guage, a Nitrous Works purge valve kit. If i purchase a solenoid, what kind should i buy? NOS has been around for ever and its backed up by holley, But ZEX is supposed to be the safest kit on the market. Any input?

Just get a Zex NMU from www.zex.com or ebay and use that.