A/C isnt working and I have found a leak

And was wondering if the gasket can be replaced on the compressor inlet and outlet block? Hi I have a 2006 chrysler sebring touring 2.7 liter v6 my question involves the a/c compressor. My ac is not blowing cold air nor was the compressor kicking in. I bought an R12a recharge kit and suspected my system was low on gas. I hooked up system as per instructions and the system was not taking the charge. To rule out the compressor being faulty I ran a wire from the positive terminal of the battery straight to the clutch wire on the compressor the compressor kicked in and was running fine

. I opened the valve with the compressor running and the system took a full can. Almost immediately I noticed a dripping from the compressor area under the car. Upon further investigation I found the heaviest soiled area was on the compressor where the hoses enter and leave the compressor there is a block with a gasket held on by four allen key bolts. Can this gasket be replaced with out replacing the compressor?Please help as I cannot afford to take this to a shop but would like to repair it. Thanks for your time