I got a quote a few years ago from a goverment bonded warehouse. Most helpful people. Never did end up using it .Cost 50 cents per day $5.15 per month for insurance and $15 one time handling fee.
Contact me and I'll give you the email address of agent. Name of place is Agencias Kabat S.A.
del ICE enSabana Norte
200 Metros Norte 225 Metros Este
Sabana Norte San Jose, Costa Rica
PH 506 296-1001, Fax 506 296-0907
Excellent English spoken.
Cynthia Molina was person I worked with.
Generally, Union-Transport has good shipping and storeage world wide. see at www.uniontrans.com
Have a good trip....