Mounted electric forge is actually on my to-do list, as soon as I can get Cata to actually compile again (the codeblocks project in master got a little screwed up).
The welding rig doesn’t include goggles because it doesn’t need to, I gave the welding rig the “CARGO” flag so you can just make your own goggles and store them in the welding rig for the same effect, or take them with you if you wanted to wear them/use them somewhere else. If I made the welding rig just give you welding goggles when you’re near it, I would have had to include them in the rig’s crafting recipe, so you would A - still need to get a pair, and B - wouldn’t be able to take them with you anywhere else. The mounted forge will be the same way, the part itself just gives you the forge, and it will have cargo space in it to store the other tools.
I hope you’re enjoying the welding rig though, BTW both the welding rig and the kitchen unit have been improved in the latest experimental, now you can “examine” them to get the iuse menus for the welder/soldering iron and the hotplate, so the kitchen unit can heat food, the welding rig can repair armor, etc.
