Sure, that's possible. I personally don't have the resources to set up a network and for my small purchases I've never needed to, also it's nearly impossible to find an official exchanger here, so it'd have to be done all through the black market or send bolivars and have them exchanged there. You're on the right track though, I've advised some friends with accounts overseas to simply use them to purchase coins and then use those to fund their purchases when convenient and people are still willing to send deposits or transfers to your foreign bank accounts for bolivars, but we also have restrictions on dollars for traveling purposes and have to get approved beforehand for them, so taking a trip to set up some accounts also gets complicated and I'm getting a headache just thinking about it.

It's usually possible to find someone who at least is willing to sell you LR online here (but never a lot) for bolivars though and then just exchange those. That's why I'm interested in helping out María, theoretically they'd already have a network set up and would know how to exchange their bolivars for whichever currency they prefer.