thank You all for the replies,i will go after Your answers and leave this hewer in actual condition.this is one of the options that i thinked about,better dont ''fix''the history.the hewer in my eyes looks enough good to have a place on my wall so forcing it into risky ingerention that do not satisfy me will be a pure waste of energy and time.
thank You one more time for opinions and for good words.
best regards