Answer: Not a wise investment as Cost exceeds Receipts.
Explanation:
As the amount is a constant payment, it is an annuity and as it is in future we are looking for the future value of an annuity:
Future Value of Annuity = Annuity * [ ( 1 + rate ) ^ time period - 1] / rate
= 7,000 * [ ( 1 + 5%)⁸ - 1] / 5%
= $66,843.76
Speculator pays $66,843.76 for loan and sells for $50,000.
The speculator would be paying more for the loan than they will sell the land for so this is not a wise investment.