A large ticket is not a bigger version of a small one. It changes the limit, the reserve, the funding schedule and what happens if the customer changes their mind.
Deposit · Inspection · Balance
Recurring · Extensions · Damage
Work Order · Parts · Labor
Average ticket, highest ticket, how far ahead of delivery you take money, and what happens if the customer cancels. The gap between payment and delivery is the exposure — a deposit taken months before the work is months of chargeback risk the acquirer carries.
The largest sale, the monthly rental and the average service invoice. Those three numbers decide the structure.