Oil filtering on the feed line.........

Wait....I have an alloy oil tank where the feed line thread is such low and not parallel with the bottom (of course on the wrong way!) that I can not fit the feed banjo bolt with the gauze (I had tried but the gauze hit the bottom of the tank , and after few turns it twisted and finished poorly damaged with no chance to let oil pass through.........) yes it's a PITA, so is it reasonnable to get rid of that gauze and the oil feed the engine without any filtering ???

Sure, as long as you make sure no swarf ever ends up in the oil tank. Jim