Thinking of what I have setting in the garage, I'd use the two 5 ton jack stands I have and lower it down onto them on the frame rails, they stand fairly tall. You can use lighter rated ones depending on your pin weight, but don't go too light with them. If the pin weight is 3K lbs, then two 3K jack stands should do, they're pretty easy to find and not expensive, I'm a "bigger is better" guy just to be safe too. If the landing gear is not working, then two bottle jacks on the frame rails to get it up, then place the jack stands. Try to jack both up at the same time to prevent any major twisting. My thoughts anyways...
2015 Voltage 3305, Gone for Good !
2014 Ram 3500 dually, Aisin, Gone but not Forgotten.
2018 Winnebago Sunstar 32YE