Fitting grill tray

[chasnjess]

Hi I am about to fit grill tray but not sure about the position and layout. So a few questions Firstly I have an old spinflo mk10 hob and sink.
Does the tray extend behind the hob and by how much I.E does it sit parallel to the grill knobs which leaves a gap of about 2-3inches of open space at the back of hob unit.
Where does the gas pipe enter to connect and does the base of grill tray sit on some sort of supporting ledge and would i have a metal layer on this ledge.Any help please as I am struggling with this bit .By the way it will be connected by a gas fitter ....................BRUCE

[snakey]

Hi Bruce,
Have a look at the SBMCC site. (Self Build Motor Caravan Club). Brilliant for info and help. Someone should be able to advise you.
Cheers Ian