GROHE 35026000 Grohflex Universal Rough-In Box

We are on the cusp of another bathroom renovation however we've had to temporarily delay the project until we complete our due diligence. Our prior Grohe reno was completed in 2015 and while we are elated with the 2015 project we are in dismay Grohe no longer has "all brass built-in supply shutoffs. The newest Grohe 35601 is a step back over the 35026 and while you can order supply shutoffs for the 35601000 they appear now to be made of plastic. Exacerbating matters is many municipalities especially here in NYC require bath fixture shutoffs unless you like upsetting tenants in your condominium or co-op when you have to shut down water "in the building" to perform maintenance. Moreover, the added cost shutoffs for the 35601's are installed on the valve body and NOT in the rough-in box .... what if you need to replace the whole valve body assembly....duh?