The issue of feasible and practical 'implementation' of these ideals, is certainly one which Evola never quite solved. The fact that he was an inherent contrarian, through and through, did not help matters.
His critique of fascism for 'not going far enough', is well known, but in general, he appreciated its fundamental 'essence' and 'feeling', especially the National Socialists.
Later in life, he adopted the stance of detachment, of being 'apolitical', and 'riding the tiger'. Therefore, at this stage of his thought, there is no meaningful external 'group struggle', only the individual path of each man to the Transcendent.
However, he still stresses that the only way forward, for any potential future movement which seeks to 'fix the West', is the establishment of an 'Elite', a vanguard group of Traditionally minded men, imbued with the same 'Order ethos' which formed such historical groups as the Knights Templar. Any movement which seeks to 'attract the masses', is immediately compromised, UNLESS this inner core of individuals is formed at the beginning. The wankery of the current 'rightwing' movement demonstrates this nicely.
Of course, in retrospect we have learned that this 'Order', was actually present at the core of National Socialism, with organizations such as Thule forming the foundation, and the pragmatic brilliance of Hitler resulting in its exoteric success. But with Evola being the eternal critic he was, and with his lofty, specific standards, such a movement would never escape his condemning gaze...
In the introduction for 'Men Among the Ruins', I read that near his death, Evola supposedly said, "One must rescue what that which can be rescued, choose the lesser evil, and ally oneself with the moderate in order to fight the subversion".
Perhaps, this represents that he eventually accepted the necessity for pragmatic compromise, which he so viciously, and in retrospect, quite fruitlessly, critiqued fascism for practicing.
>With Evola however, I don't really seem to get that. I'm having trouble understanding how to apply his wisdom, what to do in order to bring a group/civilisation closer to the Solar principle.
>But I don't know how to progress further than that. How to counter the Lunar or instill Solar principles in a group and thus inch it closer to Tradition.
I think Evola explains that both of these modalities, Solar and Lunar, are both dead, and only their corrupted, distorted 'echoes' remain, with both forces being primarily replaced and destroyed by materialism, which is a demonic force which destroys all forms of spirituality.
So it's not a case of 'rejecting the Lunar', at least as the Lunar existed in the Traditional world, but rather building Tradition from the ground up, defeating materialism (which represents the culmination of the degrading interaction between Solar and Lunar archetypes over the millennia).
Evola actually views this as a potentially beneficial solution. Since all spirituality is current dead and rotting, we have the chance to resurrect a 'Solar mythos' in a pure, unadulterated form, since the 'Lunar' vestiges have also died under the influence of materialism.
Evola suggests that this is yet another sign that the cycle has truly come to an end, all spirituality is dead, now we can finally 'restart', in a pure fashion.