Sigh. This is one of those areas where about all I can offer you is a stomach ache.
His Kingdom is within. Heaven is His throne. God is spirit. If you want to understand heavenly things you have to focus on these things above-- this higher understanding, and forget for a moment any image you might have of it. We know from the teachings of Jesus the truth-- that God doesn't dwell on earth in temples made by human hands, rather He dwells in us. That we are the house, or meeting tent, or temple, or dwelling place of God. This is why it is said that the Kingdom of heaven is within. Anyone who has ever gotten a glimpse of this kingdom has seen it only in spirit, because it is not a physical place, but spiritual in nature. You have to consider it in those terms. Moses saw it in spirit. Ezekiel, in spirit. Isaiah- in spirit, and so on.... because the spiritual realm is only encountered in spirit. And of all these things seen in spirit, God commanded-- don't make a copy. Of course, Moses missed the point and proceeded to make copies of absolutely everything he had seen. But as mentioned elsewhere the things seen in spirit have their own meanings and associations and to ignore those associations is to miss entirely the intended meaning after which you will lack understanding. Moses chose to replicate everything he had been shown in a rather literal way. In spirit he sees these winged beings, or beasts/animals surrounding the throne of God in heaven, and so he orders that copies on earth be made. He attempts to recreate those things seen in spirit, on earth. Things could not have gone worse. And David tries to one up Moses--- his desire is to build a better venue, and he passes his vision for this earthly ministry on to his son........ sounds a lot like almost every mega church ever.
But the spiritual reality is nothing like that. Heaven is His throne.... and the earth is merely a footstool-- a place where on occasion He sets His feet. He is above, the earth below.
You might note that those six steps were leading up to Solomon's throne. It took him seven years to construct the temple... thirteen to build himself a palace and in it the Hall of Justice, where he sat and judged upon this throne and none could approach it without bowing and being summoned up. Such a poor image indeed. But as far as the concept goes-- yes, 6 steps-- 12 lions, and on the seventh-- His resting place, His throne-- and His feet resting on earth. And on either side of this throne-- two winged ones.
Don't make the mistake of falling for the image, the reality is so much better.