As I said, there lies madness. I honestly wouldn't read through all of that even for free. MTMTE and Roberts is some next-level shit, you only read what other peasants have written that is strictly needed to enjoy it.
I think I should write a 3-tier detailing of all that's in the bundle, according if you want to read a) Just MTMTE, b) MTMTE + early RiD + Windblade, c) all of it, with my recommendation being either a) or b) based on personal patience and time. Reading non-Roberts pre-war stuff wouldn't even be in my acknowledged set of choices.
Interesting; I remember enjoying most of the pre-war stuff, but then again when I think back on it I just remember liking specific things, a lot of which is in the Spotlights and/or is interesting character background stuff like with what happened to Kup. I'll keep that in mind and probably just grab the Wreckers plus maybe one or two other specific things I want on the IDW Comixology sale for now. I'll keep an eye out for the other pre-war stuff on maybe some sort of crazy humble or other sale though, if I could get them dirt cheap I absolutely will.
Since I dropped off about halfway through the "Transformers" series that immediately pre-dates is it at all important to catch up on that before starting MTME or RiD, or not really? TBH I don't even remember what was really happening at that point; I remember everything pretty well in terms of the Earth stuff through All Hail Megatron etc, but it gets fuzzy for me after that. The more I think about it the more it sticks out to me that I mostly just remember the character story/spotlights which I guess speaks more to the point made in the thread about the characters and writing being the strength of the series right now.