Originally Posted by Traveler2

Welcome to the competition! If your RCP tiles are 30x30cm, then they should be the same as the ones in the Mini-96 kit. On the pinion question, it must be 7t in Box Stock, but I don't think it has to be the stock pinion. I would expect a 7t pinion from other manufacturers to be fine. I'm not sure I could even tell them apart, but Jim is the leader of this challenge, so I will defer to his answer.

It took me many posts before I could post pictures, which we very frustrating. I look forward to running with you!