HVAC can be alittle tricky to diag somtimes. Just going by your post and gauge readings.... I still need more info... Was the system vaccumed or at least vented prior to charging?

There are many reasons for high suction and discharge pressures. The most common would be air in the system, adding refrigerant to the system would not correct this. The system would need to be vaccumed down or at least vented, Then recharged to get some good readings for diag. It is very common to leak refrigerant and suck air into the system.

If you can recover the refrigerant and put the system into a vaccum. If this is not possable, Vent the system to purge the air and recharge the system and report back with readings.

A stuck open expansion valve will cause the same symptons as well as non functioning coolings fans...

Basic things to check for High Discharge...
Air in system
Clogged condenser
Discharge valve closed
Overcharged system
Insufficient condenser air;

High Suction Pressure...
Overcharged system
Expansion valve stuck open
Compressor reed valves
Leaking head gasket on compressor.

HTH