I have been a decorative painter for over 15 years, doing all kinds of faux finishing and cabinet repainting. I will tell you that repainting or staining cabinetry is not hard, but can be time consuming if you want it done right. When staining the sanding and prep are most important, then get the stain color you want and go for it. Going darker is always easier, but there are a wide variety of more opaque stains available if you want to go lighter. I personally will be just straight up painting my cabinets over in my RV when the time comes with a regular wall paint (black or super dark brown) then hitting it over with a satin polyurethane. Regular paint covers fast, you have alot less prep work and if you still want a wood grained look you can just lightly brush over it with a slightly different shade so it doesn't appear "flat". It will last plenty long and touch ups are a breeze. I am not a fan of light or medium oak stained wood and unfortunately my RV is chock full of it-for now! Trust me, painting or restaining cabinetry is going to make a HUGE difference is how your RV looks and it is far far cheaper than replacing them.