To do the repair properly, you need to take it to a shop. Recharge kits are really only temporary solutions made for systems that are low but still sealed, or leaking slow enough that there is pressure in the system. Unfortunetly your system is now contaminated with air.
To properly repair your AC, you need to install the condenser, then the technician will use an AC machine to first pull a vaccuum in the system, boiling off and drawing out all the moisture and air in the system. After which they will do a leak test (usually 5-15min of letting it sit while monitoring the vaccuum to make sure it doesn't change), after it passes the leak test they will use the machine to pressurize the AC system with the proper amount of R-134a, too little or too much will cause poor performance and possible damage. Also they will be able to control the amount of lubricating oil that needs to be added, there is a certain amount of oil that you add to the system when replacing components such as compressors, evaporators, condensers, ect; the reason for this is because while the oil is suspended in the refrigerant, it does collect in these components and act as miniture resiviours.