First of all hello to all forum members.
I'm new to the hobby with only little experience so far but after successfully completed few stationery engines i would like to try building a steam locomotive. I was searching for answer which loco would suit me the best and i think 3 1/2 gauge Juliet would be my choice. I could run it in my back garden and castings are cheap enough so even if i make major mistake while machining, replacing a casting with a new one won't hurt as much as it would with 5 inch gauge. I also decide to go for Baker's valve and yes I know Stephenson's would be much simpler but I just love the look of all moving parts on the outside, so Baker's it is 
I would appreciate if some of the members could share opinions and give a bit of advice maybe.
First question would be: where to buy drawings from?
Blackgates and Reeves drawings are both 7 sheets where GLR Kennions only 6 and only half a price of the first two? Why is that? Am I missing something? Would let say Reeves drawings be more detailed than GLR?
Other thing is where to source castings from? What is your experience about service from different suppliers? Will castings from one be better quality then the others?
And finally is there any book describing building a Juliet? I know about ME articles from 1947 and i'm lucky to own some of them but there's lot of referring to previous builds like "machine part as described for Lassie" or "do something as per Lassie notes" and obviously it would be easier to buy one book than collecting dozen of magazines.
It's going to be a long time project as i can only spare few hours a week, but certainly any advice from forum members will speed up a build so any comments much appreciated.
Thanks!