Parking a van for a long time in Vladivostok
 

I will be arriving to Vlad around the end of July (2017) and I'd like to take my van to Japan (assuming I have the proper documents) but DBS prices are crazy expensive (almost 2000USD foe the round trip for 2pax + 1van, please correct me if I'm wrong). So I'm thinking abount parking the van in Vlad for around a month, go to Japan and then come back and pick the van up again.

So, any ideas of where I could safely park the van for that much time ? I don't really "care" about the price, I'm willing to pay 200USD o 300USD if necessary as long as it is 100% safe.

The only place i've found so far is the airport...Parking | Международный аэропорт Владивосток what do you guys think ?