I've got an old client that's still on EE1 (I know!). They need to move server and will likely have to be on PHP7 which obviously means an upgrade.
What's the best approach here? I guess I need to upgrade EE1 > EE2 > EE3 > EE4? And how do I even get a copy of EE2?!
The site also uses a bunch of third-party plugins that I expect will be tricky too (NGen file field, Freeform, SL Google Map etc). Would I need to upgrade each of these at each step to a version which works with each EE version?
And finally, is this going to be insanely time-consuming – would I be better off rebuilding and trying to export/import data (if I can find an EE1 export plugin...)
Thanks for any tips!