They should be able to. Most just wont bother their arse though.

I had manifolds done ages ago. Mate in the Railways did them no problem at all.

I then tried to get a well known local place to do them a few years later....Such a nightmare. He did get them done and then charged me a fortune stating it took hours to get them set up etc.
Load of balls. Using their brains it could have been done easily in a few minutes.