I think OP said that he will allow orders once he has all the info he needs and he knows exactly the price.
The 80Eur is already calculated estimate, but since there is a degree of uncertainty involved with not having the data on the Chips i can't commit to it yet.
I will be away over this weekend, so don't expect anything from me.
OP Updated with email address.
I'm excited about this project and have fingers crossed to receive these modules before my birthday at the end of July.
I'll do my very best!