A contractor is financing the purchase of a storage facility. The loan will be paid over a $15-$year period at $6\mathrm{.}5\%$ interest rate per year. Currently this contractor pays $$1,149$ per month for this loan. He secured this loan $6$ years ago. Now he wants to pay off the rest of the loan at as a lump sum. Compute:

$($a$)$ The original purchase price of the storage facility.

$($b$)$ How much does he have to provide now to pay off the loan?