I'd choose immortality out of curiosity, to see how things change and the world evolves.
Besides I can't die because of old age or disease, but what about severe body damage, decapatation, loss of blood, lack of nutrition or oxygen deprivation?
I think it is safe to assume that I can die due to the listed causes.
So in other words, if I get sick of my immortality I'd attempt "suicide", quite a contradiction there I know but I hope you get my point.
Also who would grant me immortality and what if I were to break his/her rule of not talking to my loved ones, would they die, would I die, what would happen?
Option Number two, I wonder why anyone would waste five precious years of their limited life for such a small amount of money?
I wouldn't and if I were immortal I still wouldn't consider it, not to mention I would have all the time I need to earn such an amount or more, without seeling my freedom for five years.
Number two is therefore a no go to me.