You don't get new nuts and bolts from BG, but you can get them from Renault if they're badly corroded, but they're pretty strong so surface rust won't be a problem. Give them a scrub with a wire brush and a spray with grease/oil after fitting to help slow rusting. You may consider the Eibach adjustable camber bolts so the alignment can be set up properly, but i remember mark fish said he didn't like to use them so talk to him if you're gona go there. You can check the condition of the top mount rubber and bearings to see how much dirt and muck is in there, but someone else will have to let you know a definative answer as how to judge wear.