That inflator sounds more like the ones used on a SPORT than a PRO.
Sport hose = $95 retail
HD/PRO/Xtreme hose = $65 retail.
new swivel inlet valve, $110 retail (yikes!)
Conversion nipple to switch over to US style (inferior) connectors, $10.
Viking inflator nipples do not interchange with the US style (Seaquest). (o-ring seat in the base, different stem, too)
Your local shop should be able to knock 25% off those prices & still make a tidy profit.
Unisuit (Poseidon) hoses will fit the HD/PRO/Xtreme valve nipples.
Give a holler if you don't have a local shop handy.