I've just been watching some you tube videos on VB semi air bag fits at out and about motorhome services.I used a micro sized bike pump just velcro strapped to the driver's seat base, where I'd routed the valves. The pressure and volume required for semi air is really low.
The fitting is very similar to the airbag fit I did on my Adria coral.
My main issue is the pump position but not really sure I need it as like you on the Adria I also used a bike pump. I could just get out at the port and give it a bit extra for the ferry.