Use a bit of silicone tube, split it and wrap it around the hose to stop it wearing. Carbon engine covers can be sourced from ECS tuning, they're pricey though! I purchased a set last month because im a carbon whore. Awesome GTI can import them which cuts a lot of shipping costs and import costs but usually have to wait a few weeks for them to arrive.
Fctaff has his plastics dipped if i remember correctly.
In the new year i'm going to be a looking at making moulds for a carbon panel to cover the gap on the right hand side of the bay (around the coolant bottle etc). No idea on what costs will be yet, i'll be making the mould then sending it off to someone that knows what they're doing to lay the carbon itself