Well done for getting the 70mm unperforated, it is still available in this years ULF campaign until tomorrow, the last day, for 2016 delivery.
I was going to order a roll but decided that it wasn't worth rolling onto my 122 backing paper due to probable edge curl issues across the 3 1/4 inch film gate, so I am slitting 5 inch Kodak SO-200 aerial film (140 micron so just OK) which has tested quite satisfactorily for 1990 film.
I will try again next years ULF campaign as it would be great to have fresh B&W film but as it is not on Ilfords list (in roll base) it is difficult to know the numbers who would potentially want to place an order.
Ideally a poll on Ilfords web site before they produce a list next year would maybe solicite enough interest/orders.
We will see.