I had another look at my "long comment". I think it was too long - though there is a lot there that's worth thinking about. Anyway, I'll keep this shorter. Since you like the idea of particles from gravitational fields, I thought you might like to read a few paragraphs (only 3 or 4 short ones) showing how particles from gravitational fields can explain why planets orbit in the Sun's ecliptic plane -
A few words on p. 27 of http://vixra.org/abs/1305.0196 (the section called "CHALLENGE - Explain To The Layman How Gravity Accounts For Dark Matter and Dark Energy Without Using Any Mathematics (this could have been given subheadings of its own - about Kepler's laws of planetary motion, tides, orbits, but my abstract's long enough)" reveal why things in the solar system orbit the Sun's ecliptic plane.
Those words are - "the more mass a body possesses, the more gravitation is diverted to play a part in that body's formation". Agreeing with Einstein's theory that gravitation is a push created by the hills and valleys of curved space, gravitational waves are a repelling force (this aspect of gravity is normally referred to as Dark Energy) refracted towards the Sun's centre. The waves ultimately originate far out in deep space where they push galaxy clusters apart. As they pass the solar system's outer boundary, some waves are refracted by the Sun's mass like ocean waves passing an island (some are refracted towards the island and cause waves on its beaches).
Having given the planets a push which keeps them in orbit and prevents them flying off into space, the waves arrive at the Sun where they interact with electromagnetism to form the masses of subatomic particles (mass being produced by G-EM interaction was proposed by Einstein in a 1919 paper) ... and to form the strong and weak nuclear forces within atoms (nuclear forces are a by-product of G-EM interaction). The rotating Sun bulges at its equator and therefore has a larger equatorial than polar diameter, and more mass at its equator. This means more gravitation has been diverted to that region. Planets are also made from G and EM interacting, and must consequently lie in the path gravity waves took from the outer solar system to the solar equator (more gravitation was diverted here - so if planets are created by G and EM, it follows that they'd be created where the gravitational "current" is greatest).
For simplicity, we say the Sun's gravitation is strongest at its equator and planets are compelled to orbit in the ecliptic plane.