Chrome
In my Lowrider car days, I always took my parts just over the border to Tijuana.. Over there you pay about a 1/3rd of what you would here. You need to know a little Spanish and the bigger the job the lower the bottom line was. But here... It could cost you maybe $300+ for a whole Ballooner. As far as rust, If it's just surface rust they sandblast it off. If it's rotted, I would replace it. But it's very important to get all metal work done. Any dings, dents, heavy abrasions will show and make the chrome look bad.