I'd love to see a Nepleslian extension of PAINT. Note that PAINT is for passengers, not really for shipping parcels in a Fedex-like fashion.International friendly things become hard... It would almost be simpler to have mid-way stations where you transfer from one faction's service to the other.
Also, Bravemart would be willing to sell more companies' products if approached with offers from them. Bravemart is designed with indie player characters (on the frontiers) in mind as their clients.