Most often, the buyer will not have the cash to pay the full purchase price. He or she will need finance. You should not overlook obtaining finance from the seller. Often they will give you finance at a much lower rate than a bank or finance company. You must be able to give adequate security i.e. a charge over the business, a mortgage on your private house, a guarantee by your spouse etc.
Banks invariably give cheaper loans than a finance company.
Both will want full details when considering granting a loan. Invariably, they will want a Cash Projection prepared by your accountant. This is a document estimating your Gross Income for the next 12 months, your expenses for the next 12 months, your own wages required for the next 12 months and the cost of purchase of equipment for the next 12 months. It will show cash coming in each month and cash going out each month and the estimated balance at the end of each month. Obviously, the bank will not advance you a loan unless your forecast shows that you will be able to meet the monthly loan repayments.