If you have taken off the hood peak molding to fix the broken tab and if you can fix it properly you may find other tabs break off when you go to reinstall it.
The tabs only bend to install and un install a few times before breaking A new excellent looking repro hood peak molding is about 300.00 from Branda. Get them while they last . Last time they were gone for about 4 years. While they were unavailable I saw some sell for up to 2K because there were non to be had. I have always used the thin 3M brand tape that had a red paper to identify it under the hood peak molding. I suppose what you do depends on your expectations. Given the time ,effort ,success rate of repair,and how it ends up looking, the excellent repro (which looks identical when installed) will save time/labor and frustration IMO . At least while they are still available.