I'd be very tempted to make friends with the appliance manager at
Lowe's, partly to scope out clearance items but also to find any gruppo deals out there.
Home Depot may have the same type of thing(they did in '08 when we went with Maytag for a number of items resulting in a rebate from Maytag, gift card from Home Depot, free delivery and install on top of the 10% movers discount.) There was also special no/no financing for a year back then...different nowadays; but I'd be looking for a year of no interest, at least, for the thousands you'll be spending.
Did something like that for a friend who needed a washer and dryer...looked for deals at Lowe's, combined a couple of discounts PLUS she got 10% off using her mover's coupon AND a manufacturer's rebate. Fun times