“Unless otherwise permitted by Air Canada, all benefits and privileges associated with Aeroplan Elite Status are personal to the Status Holder and cannot be assigned, traded, bartered, willed, exchanged for cash, or otherwise transferred.”
Serious question - if you find you don’t travel enough to qualify on your own, what are your specific goals for having 50K?
An awful lot of the benefits can be had from a premium credit card that’s likely to cost far less than you’d have to pay to convince a random SE to gamble their status on selling you an SE perk that can easily be worth thousands of dollars.