ok, I'm wanting to replace my old 20+year old furnace +coil. and a 1995 ac unit

right now the old furnace is a singer 80,000 btu furnace with 1/4hp fan.

the house is now 2400sqft, due to the enclosed garage into a bedroom. it was 2000sqft home.

the old furnace is narrow, and the opening into the furnace closet is 24" with room on the sides for air intake ducts.

after research, most amana, goodman furances 92,00btu or up are 24 1/2" wide.

what options do I have for this? the only ones I see that fit are 69,000btu amana or goodmans.

any help would be great

my location is central north carolina.