Please help me find oven/cooktop set

My tenant has advised that the oven and stove have stopped working. Looking to get them replaced and below is the pic of items

It appears to be built in oven with electric cooktop.

I note that there was really good prices back in July from Whirpool but obviously it is expired now.

Is there any promo currently going on to get them at a reasonable discounted price? Also how much will be approx. installation cost?