I strongly suggest to gather *in-deep* informations what it´s all about creating interactive panos and tours before you spend much money on hardware!
Another point is your potential market: check what kind of clients might be relevant for you and what prices you can ask realistically.
Do some researching marketing-wise . . .
I have some experience since this was my graduating project, so I think I have a good background about what i'll be doing. the only issue I had was not having the right hardware.
My clients are for now 3 hotels (Grand Park Hotel Bethlehem) (Grand Park Hotel Ram Allah) (ST Gabriel Hotel Bethlehem)
and prices already set, a bit high, but i'm the only one in the whole country!! I think I can ask for a bit high price at the moment, there is zero competition.
For clients that ask for more than one 360 by 180 the price would be less for them for sure.
Then there is the other part, where i'll take images for touristic places and then i'll sell it on CDs or non-writable USB sticks. Palestine is full of places you want to see (mostly christian places like Jesus Nativity Church).
I believe I may have a good market, not to give me a life span more than 1 year, but good to make a enough to get me out of here