stroker life span?

I absolutly love the idea of a small block stroker. I wouldnt have to change my tranny, I wouldnt have to notch anything for the oil filter, I wouldnt have to shortten my driveshaft, It would weigh waaayyyyy less than a big block (Im going to use alluminum heads etc), and I would have all the power I would ever need. Oh, and I could have power steering. Even though it sounds great, Im just a midshipman and after working on commercial cruise this next summer(internship on a merchant vessel for 90 days) i'll have quite a bit of money to throw into my car. I just dont want to have to rebuild my entire motor after simply 20k miles. I dont have the income or time to do that. I average about 5k-7k miles a year. I understand the theory that because the stroke is longer the motor wont have to rev higher therefor the same amount of wear accur however, Im not entirely convinced because no one on here has ever gone above 40k miles. Does that long stroke cause too much piston slap as the mileage builds up?