SRCDS Optimization for Custom Garry's Mod Gamemode.

[Gliby]

Hello, I've been wanting to start my own [B]server[/B], and I would like it to be very efficient.

I'm planing on having about maximum of [B]50[/B] [I]players[/I], the [B]gamemode [/B]is a custom one by me.
I'd like the server to run smoothly with about 1750 frozen props(so 35 props per player), and a bunch of active physics entities(mainly vehicles)

There are some big server owners on facepunch, so could you give a little guy like me some tips?
Example: SRCDS configuration, server specifications and recommendations, custom stuff, etc