Russue, If your son gets a satellite service yes you can(but dont tell Foxtel)

if he applies for a second box to be installed you could then hook it up in the van.

if it is a HD or IQ box you will need a dual output LNB and cables to that box if a standard box it needs only one output and cable.

These boxes will not receive the VAST signal so no need to register with them.

I would highly recommend a digital satfinder like the SF3239 available from Satplus www.satplus.com.au

there are some cheaper versions of this finder but for after sales service and support I would get the whole kit from a reputable dealer here in Aus.

frank