SharedEcommerce on Aboutus.org with E-Junkie

Hey Robin or anybody of the support team,

we have some questions, posed in http://aboutus.org/SharedEcommerce, we ask you here,
because you might have a better feeling here "at home" :-) although I did my best to prepare a comfortable context in the aboutus.org wiki.

Q1: How can we reduce the high percentage of Paypal-transaction costs, when needing a price <1 US$. Do you allow cumulating small amounts or do you know other micropayment options?

Q2: Do you allow customizing the PayButton... something like | Create More ? | together with your VISA and Mastercard logo?

Q3: Do you allow group accounts for SharedEcommerce (I guess, Paypal has something like
that).

All the best to all of us
Fridemar

Q4: We need a one-time Buy-Now Button for selling domain-names. Is this possible with E-Junkie? (As a small API application for GoogleSpreadsheet and/or EditGrid).
Of course it would be great to integrate at least an Intra Registrar Transfer of the traded domaines.