buzz, it's a good idea when doing things for friends to think from the start how quickly it can be done. Who wants to strain a friendship by proposing to do something that takes so long that either or both of you will be strained by the delay between point A and point B?
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw