If I were making a purely financial decision, I'd go for the Sailor. You only have $550 in the bank. That's not that much. What if something happens? Your brakes on your car, or you need some other thing that is essential to life. You could put aside a few dollars a month and save for the RM perhaps, but you need a job for this. Yes, the RM will last longer-- but you could buy a lot of new Sailors for the price.
This decision might change depending on the extend of your lower dysphoria-- if it were extreme and not helped by the Sailor. But still consider only having $550 and the bank.
--Jay J