I am not sure if that is good for very dusty conditions. During our stay in Central Asia we met few people with those filters. They are good in normal driving, but when is very dusty, some of them had to be cleaned twice a day and if you have just one filter=nightmare.
I borrowed dust separator for our snorkel and had to empty it every few hours and main air filter was still very dirty every day, so that is why I am looking for "dry filter" solution.
I have another question.
I want to buy stronger alternator/80A/ new starter motor and waterpump. Is ebay a good place to buy?
Thats where i get parts from, although i don't know if it is good for starter motor and alternator, its common to buy and trade in an overhauled one. I wouldn't trust buying a second hand one online from a private seller.
I bought a front set of Brembo discs and bosch pads online for $110 the lot, although they are made in Malaysia and Indonesia they have the big names on them, probably better than a generic named one at that price. Then again this is for a local daily driver not for travelling around continents.
Why do you need a stronger alternator? You wouldnt have much to run on that old thing even with extra's.