Cleaning Oily Gunky Mildew Guns?

[Cavalry]

Long story short, I am involved in an estate with a substantial amount of firearms that have been neglected for a couple years. I am not a stakeholder but phrased it as I would be interested in helping out for first picks at a discounted rate. They were oiled but left to sit out in the open in a house with no attention. Dust, dander, etc has fallen on any horizontal surface and mildew has formed and is eating the dust as well some mildew on the oiled wood, fabric and leather. The mildew/dust on metal comes off but is very sticky.
If they were mine I would do a detail strip and just do it right. But I do not have that sort of time or inclination.

Thought #1 Pull the wood, wipe with water/vinegar. Metal goes in the solvent tank and gets scrubbed with a soft brush, blow off and oil

Thought#2 Go to town with my steamer on them assembled (outside). It will flash dry almost immediately so I am not worried about rust. As long as I dont dwell on the wood or damaged finish I do not foresee issues with the steam. Oil and send it.

 

[Saltwater60]

Try a diluted citrus based cleaner to see if it takes the sticky gunk off. It should. You can use fine steel wool and then oil it.
I like option one, but not the steamer idea.

 

[togmaster]

Do it right or do nothing.

 

[Cavalry]

Do it right or do nothing.

If they were mine I would completely agree. I would say at least an hour each to detail strip and clean which is not worth the time investment. This is more like make them not look disgusting.

 

[Robin]

I'd try windex spritz, let it sit for fifteen minutes and soak a rough terrycloth rag with windex and start a wipe down, rinsing often. If that works, wipe down the steel parts with oily rag, wood parts with lemon pledge aerosol, leather parts with neatsfoot oil. Easy!
Robin