The unit is us$8000 according to https://megabigpower.com/shop/index.php?route=product/product&product_id=53
The BTC/us$ is ~97. 8000/97=~82.5
The GB is still 98 BTC. What's going to happen with the ~15 BTC difference ?
You said in your OP that you wouldn't take a profit on the purchase.
I do realize that it is possible that the BTC/us$ will go down, it has to go down to ~ 82 us$/BTC before the 1 BTC/share is not enough.
Why not take my suggestion and do a refund for all BTC not used when the actual purchase is done ?
I will invest in this GB when you do that.
You have "Effective July 10,2013 Shares are 1 BTC each, will adjust as USD/BTC exchange rate changes as Bitfurys are priced in USD.". I think it means you will adjust the share price when the exchange rate changes too much, but this doesn't say anothing about people that already invested.
Another question: Hosting in a tear3 data centre. Have you already selected a data centre, made a deal with them and know the cost/month ?