The conventional wisdom that burning pine creates creosote is a completely false although very popular myth (particularly on the east coast). Creosote is created by burning wet wood too slowly (particularly in a stove that can be damped down). The resin in pine and other softwoods is not a factor in the creation of creosote. In fact, the resin may cause the fire to burn hotter and cleaner. There may be other reasons to avoid pine in a fireplace, but creosote is not one of them. The science on this is pretty simple.
The cost to paint a room will vary based on the size of the room, the type of paint you select, any ceiling or trim work needed, and any repairs needed. If no repairs or other additional work is needed, painting a room with contractor-grade paint could range from $1 to $2 per square foot, including materials. Selecting a luxury paint (some cost more than $100 per gallon) will certainly increase your house painting costs. Here are some additional examples of average house painting costs, per room: Home Painters