> 1b) Ability of European academics to work at our universities and corporations.
> 3) Subsidies to science, agriculture, renewable etc... and ability to participate in pan-European projects.
Uncertainty about those has already resulted in enough stuff going titsup that I probably won't have a UK job by the middle of 2017.
On the other hand, I'm skilled and experienced enough that I've already been getting offers to go and sort out stuff in outer bumfuckistan for £UNGODLY_AMOUNTS and come back in a decade.
By then the property bubble will probably have collapsed and I'll be able to afford a house, but more likely I'll brush up on my romance languages and park up on a french coastal village somewhere.