I have to ask, do you have RC Powers permission to give the plans to the T-50 V1 away? Just because they are no longer available I don't think gives any of us that have paid for the plans with the understanding that we would not give them away, copy them without permission and respect the copyright to just then give them away to anyone who asks. As someone who paid for the plans a long time ago, unless RC Powers chose to make them free at a later date, I don't think it is right for me or anyone else to then give them away, they are still the property of RC Powers until they choose to make them free I would think. Just my opinion.
You are dealing with copywritten material.
You have also stated your intentions publicly. Might make for a simple copywrite infringement case against you. I'd think twice.