Alternative solution: do a Sparse Checkout - excising things in that tree that you don't really need. Google's monorepo is north of 100TB of history with over nine million source files at HEAD revision. Individual Googler's day to day checkout tens of megabytes only: https://trunkbaseddevelopment.com/expanding-contracting-monorepos/
Though they made tooling for that expanding/contracting stuff, most normal companies could do the same to share within the team with a single bat/sh script for checkout. After that, 'svn up', 'svn commit' work as they always have. Indeed, if that bat file using the command line svn exe did it stuff, TortoiseSvn afte that will work as you expect for update/commit. The sym-link for something that Subversion needs to refer to a lot is a bad idea. - Paul
