I searched a bit and it appears that @surfnacho 's Infinity Hubs are not finalized yet but maybe he will pop by to let us know when they will be available for sale.
Read this for more info on pneumatics and wheels:
I have only used one set of pneumatics (3DS with Klever 6X2s) so I am the wrong person to ask about what is best. There are a lot of options out there depending on size and tire compatibility. People like Bergs and Metro 155s but finding tires and tubes can be a bitch.
Also this is the best place to get answers from lots of experienced people for questions about DIY and parts recommendations: