Welcome to mud!
Nice Meru you have there. You can get the clinometer from mot, he lives in Japan and might be able to get you one. Check here:
http://forum.ih8mud.com/90-series-tech/127858-clinometer-compass-meter-option.html
For other accessories such as snorkel, rack, etc, you might be able to get them cheaper locally in Venezuela than importing them from abroad.