power conditioning question gentlemen

If the issue is the effect of the generator have you considered a battery solution to store power from the solar array? The Tesla product is an obvious option. Battery based power supplies are a big trend in audio with products such as the Stromtank. Looks like you could get the same type of setup at much less cost given your existing array

OK so you have an off grid battery source which is great, issues with the generator are probably best dealt with by simply turning off or disconnecting the generator when using the hi fi for critical listening. Your main issue seems to be making sure the sensitive components have as clean as possible a source (i.e. minimizing interference from other things on your power system like fridges and lights) and that the amps have a supply that supports peak load

If I was you then I'd avoid a regenerator at any costs (they basically will only increase the load on your battery cells and as the main benefit a regenerator brings is cleaning up the power which is not your issue they bring little to the party)

I'll not comment on balanced power (I used to have a full Equi=Tech balanced set up but the cost and complexity of this is well outside your budget). 

Currently I use Synergistic Research Power Cell 10SE UEF, being upgraded to 12 UEF so you can get good deals on used 10SEs, but still will be $2K a pop. They work exceptionally with both sources and heavy duty amps (like my 450W per channel mono blocks). These components follow a wall mounted Torus transformer so I already have clean power but the added benefit of the SR products is still very clear.

I also like the look of the new Shunyata Denali -- especially the way they support macho power plugs, but again much more than your budget.

You could try the lower end products in either line ideally working with a dealer that will give you a long trial and maybe a 100% trade up option. Alternatively buy used and trade up as you desire