[don't be heavy]

-trimmed-

not much bigger than daedric but I honestly don't know how file sizes impact and what size files to look for

Daedric is a old model it's been here for at least 2 years most likely longer

 You mostly want to look for models with good hitboxes and small file sizes(nicol can probably give you a good range to pick for size.) Things to avoid are giant files since they have multiple variants of models, ragdolls, npcs, and finally the actual player model.The problem with gmod models are how many modes there are and what exactly that model is designed for. In my experience the larger packs are generally used for sandbox or if the server owner doesn't care about how quickly people load in.(most people won't wait 10-20 minutes to load in a ttt server) Going in and ripping out portions of the addons is possible, but there would be extra steps in adding the model to the server.