Hi,
I badly wanted to have the Millenium Falcon 4504 as I liked the overall design the most. What I did was not just buy a set but to look for missing parts at bricklink to build my one version.
Regrettably I realised that the original build was highly unstable and nothing for a 7 year old son. Whether it was lifted on the side or in the frond it almost ended up breaking apart... Folding up the top ends in having the parts in the hand rather than on the falcon... . I do not know what TLG thought at that time how this should be playable...
So I completely enforced the ground plate, the front wings (still space for the cargo :) ), two hinges on each pair of roofwings, raised the center tower by two plates in order for the falcon not to look too flat, etc...
Well here is the result, hope you like it: