Good luck! I have no opinion on the transaction, but I know your feelings and will be thinking about you.

The only somewhat helpful thing I can say beyond that is: check out the FSA Wing Pro Compact handlebars. Not only they come in 38 cm (and perhaps even 36 cm if you're really narrow) but they also have a different shape than most handlebars, making the reach much shorter. That's what I got instead of a change of stem (my bike was a free handout but it never fitted perfectly), and I was really happy.

(You can google them, some other angles show the short reach better.)

I am pretty sure a 60 mm stem would be really short and weird.

Good luck *big hug*