To answer your question yes, it will be an eyesore. Do it right, get someone in who knows how to do the work. If it costs a £100 - £200 weigh that against looking at dog leg pipework for the next 20 years and thinking why? You'll forget the money it cost in a month or so.
Good point, well made.
Yes, you'll be able to get the offset with elbows/streets. 135 elbows will give the smallest offset.
Great, thanks.