I did something similar a while ago on a considerably simpler part.
I was making a new meths burner for a Bing loco.
The filling bolt is in a corner as there is space above in the loco for the bolt to sit there.
Of course I drilled the hole on the wrong side of the tank for the wick pipe. :big:
Shoved some brass rod in the hole and silver soldered it up then filed and W&D it back and you can hardly tell now.
I was making a new meths burner for a Bing loco.
The filling bolt is in a corner as there is space above in the loco for the bolt to sit there.
Of course I drilled the hole on the wrong side of the tank for the wick pipe. :big:
Shoved some brass rod in the hole and silver soldered it up then filed and W&D it back and you can hardly tell now.