Ehhhhh so this was in 2000. Your standard ecstasy pill (we’re assuming they’re not pipers; these don’t look shiny and they’re not shaped or outpressed) have between 70mg MDMA and 120mg (if they’re absolute fire.)
This would be about 400mg of MDMA total. While that is quite a lot, you’re not going to have a horrible time—I just wouldn’t do it in public because you WILL be a chattering mess. It’ll still feel amazing, though.
Source: oldhead, last time I rolled it was a total of about 450mg but spread out over hours and I was absolutely not in public, just writing naked with my partner)