Parts needed for A/C installation

Lot of conflicting information out there on Freon conversions. If you want it perfect, that is a lot of work. If you just want it to work, that is a lot easier. Get a new dryer& expansion valve if you can. Put together, vacuum it & charge it. Freon is only $5 a can a Walmart. I bought a good Freon leak detector on Amazon got about $30. Vacuum pumps are about $100.

Who cares if you have to charge it once a year for $15 on Freon