Loco boiler models
 

Hi Guys

Would like a little help looking to make a J72 boiler for my MPD ( to stick on either a lowmac or Bogie Bolster A

Any ideas where I can get simple drawings for the outside measurements

As an extra I have found out the diameter is 3 foot 8 inch and the boiler is 10 foot long
BUT does the 10 foot INCLUDE the firebox and I can not find any firebox dimensions except area of grate at 11.3 sqft

Can anyone help ?