Nice review and lovely kit. Meng just keep blowing us away with the originality of their kits and the wealth of detail they pound into them. I am really liking this "trend" we are seeing with more and more kits being released with interiors.
I am not sure I really understand why there is such disappointment (and even anger) regarding the fact that Meng has released a special edition kit with resin engines (I've seen multiple comments on this site about that). It's not as if they falsely marketed their first kit.
Manufacturers do this all the time. Tamiya (for example) have released some of their more recent kits with upgraded parts, in some cases with Aber etch and barrels.
Such is life.
If you buy a smart phone, guaranteed a better one will turn up 6 months later, same with computers, cars etc etc. Thankfully, models are a lot cheaper.
If I really wanted the kit with the engines (and if I already had the original kit), I'd sell the first one and buy the new one (there are people out there who do not care for interiors and/or engines at all, so it should not be a difficult sell). Ok, most likely at a loss, but if I really, really wanted the version with the engines then that is what I would do.