Have you used the existing Metrolink under Piccadilly? It runs through a former goods basement, no tunnelling needed. Marple tram-train would likely connect into this.
Yes, I think that was the original plan, although I seem to recall seeing a more recent one which suggested that the tram-trains would leave the rail line at Ashburys and head north-west to Ashton Old Road, and then continue to Piccadilly along the road, which would obviously be slower.
Considering the amount of tram extensions they've completed TfGM seem to be fairly competent compared to most other local transport authorities.
Agreed - I don't know what Jimblob and Duke expect, but as far as I can see TfGM have been doing a pretty decent job - as rsh says, the spectacular growth of the Metrolink system, which operates without public subsidy, has been a real achievement.
I understand the reservations that some people have have about tram-trains, but they are the only option on the table at the moment, or in the foreseeable future. If hatter and others who oppose tram-trains think that we will ever get a modern electrified heavy rail service in Marple, all I can say is 'in your dreams'! If tram-trains don't happen, we will continue to suffer the present service, with gross overcrowding and some of the worst rolling stock on the entire UK rail network. And when the Class 142 'Pacers' are eventually retired in a couple of years time, don't imagine that we will get nice new trains - we are the lowest of the low in terms of the national rail hierarchy and priorities, and we will just get more Class 150 diesels - old, dirty clapped out ones, 'cascaded' from other parts of the UK because no-one else wants them.