EQ Titanium missing disc one...

[Llahsram]

Ok so I feel really stupid. I ordered EQ Titanium on Amazon and when it arrived I suddenly discovered that it had all the discs but disc one. I was in such a rush of excitement seeing it sell for so cheap. I completely overlooked that the seller even mentioned it was missing disc one.... Sigh
Anyways. Though I have all but disc one, do I still need the actual disc one copy of titanium or would any copy of classsic eq work in order for me to install and still play P99?