Help!!! Timing belts must be changed!

Hello guys! I have a question for you! with the Honda Civic 1.4 I with climate my friend year 1998 MB2 must be changed the timing belt. We have already caught up with several offers. Honda wants to take 400 euros. Partially it is said that the water pump should be taken along and the tensioning roller. Others say that the pump should be changed niczht because it lasts a very long time, others say that the tensioning rollers should not be dipped either. when the timing belt is changed the ve Ntildeckel unscrewed it must also be installed there a new seal. it is said that the wedge belts for air conditioning, light machine and servo steering are also made when you are there. can someone confirm that………….? how did it go with you???? DANKEEEEEEEE!!!!!!