Powerlines2000

Hi, Was after a little advice, my daughter is studying theatre at Uni and the society she is with want to record their performances mostly for archive but also for some bits to be used on social media. They have a budget of £300 for a camera but are struggling to know what to get that will work with low light and lighting changes. They had thoughts about a gopro or handycam but not sure what is best to look for. Any ideas or advice would be great. Cheers.