¯\
(ツ)/¯
well then i'm out of ideas.
i suppose you can ask a friend which doesn't have a bandwidth limit to download it and mail it to you on a DVD or USB stick, if you have one. - offline installers (suitable for putting on a DVD/usb stick) can be created, per
Create an offline installation - Visual Studio (https://docs.microsoft.com/en-us/visualstudio/install/create-an-offline-installation-of-visual-studio?view=vs-2019)
(but at that point it would probably be better to mail a full linux VM with the complete compiler environment set up, and the VM installer (virtualbox? VMWare?), then you'd know 100% that you'll be able to compile it when it arrives, and you're not lacking large dependencies like boost-iostream and boost-whatever libraries which forgottenserver also needs)
