Hi Mitchell! Welcome to the forums!
The demand for casted parts, in my opinion, is bigger than the original parts, because sometimes the originals (despite how rare they are) just don't cut it. I recently acquired a barrel myself and I was about to work on it before Ron stopped me, lol. Think about it...the plastic is like 40 years old...it's best to make a mold and use the casts from that.
Also, you can't use original Turbo Trains on Servo because they were vacuumformed from an original.
The big problem is bot building isn't as popular as it used to be. Even though I'm a young newcomer, it's apparent that the real demand for bot parts, whether it be real or cast, is small. Hopefully this forum will bring back bot building into the spotlight.
While technically, you will eventually need like all of the parts to make bots, the most important and/or rare parts are - IMO - the most popular. So, Money Barrels, Cooper XL7s, Wallace Lamps, Crow hands, Servo engines, Servo Hands, etc. I feel Ron is better equipped to answer this question than me, lol.
Yes, the parts are out there, but you need to get to know people from the bot building community to help you out. Randy (Lil Monsters) makes some of the best parts out there. Bob (MST3KGuy) also makes some really good parts as well, but he does a lot more vacuumforming which is great for people on a budget like myself.
But yeah, I would be interested in some stuff if you offer it. I already sent you a PM.
