Personal ads - Looking for a keyholder or sub? discussion

I’m a mature, older submissive man who is married and loves being in a cage and practicing chastity. My schedule only allows me to lock up during specific windows, ranging from 2 to 7 days. I can’t meet in person, so I need everything to happen over video chat. I’m looking for a Mistress who would be content with a part-time, cam-only arrangement, though I suspect that might be a tall order. Does anyone have any advice on this dilemma, or would anyone like to chat about it?