Start up costs for breeding usually end up somewhere around $200. You need a spawning tank and a grow out tank, a heater, thermometer, live plants, fry foods, high quality foods to condition the breeders, jars once the fry are old enough, a sponge filter, and a lot of time.
In all honesty I don't think you should breed either of those fish. The female looks quite unhealthy and is probably already past prime breeding age, the male probably is also.
Are you planning on keeping the female in that tiny tank permanently? It is very small and will be very hard to keep heated. A tank that size needs daily water changes. She is probably stunted due to lack of care and I don't think putting her through the stress of breeding would be helpful.
Bettas are best bred from 3-6 months of age. Well cared for bettas can breed past this age but the viability of the fry lowers with the age of the parents. It is best if the breeders are allowed to spawn until they are finished and then culling should be done at a later date when the best fry can be judged against the rejects, who you then have to figure out what your going to do with. Are you prepared to kill fry with genetic defects? That is one of the hardest things betta breeders face but it is a necessity.
Also, you want to consider where your going to find homes for your fry. VT are very common and it can be very hard to find homes for the fry.