Hassan do you think 8 thousand is great cost ?. If your engine noise dosent bother you keep it running and tell us complete details about your city and sound of motorbike. is it sometimes jerky ? or loose power? .
if you insist on rod work here are 2 things you can do to save your budget depends on you.
1. buy a whole new rod and just get it replaced . 2000-3000 labour cost(This will take couple of hours) .
2. Get rod replaced with old parts (this will take whole day.)
now it all depends on you no1 process is most expensive but will save you time and soundless engine.
now no2 will take time but it is not guaranteed that sound will be gone or there will be soundless engine like original . Prepare yourself for same process again after small break .
now the story ends it all depends on you.
sometimes money doesn't matter only time.
some people go for third choice they go buy new motorbike .