I am attempting to install an oil sump gasket kit. I have multiple questions.

1) Do I have to pull the engine to remove the oil sump, or jack up?

2) Is there a place to hook a psi gauge so I can check the oil pressure?

3) I have taping cam followers and was told a oil sump rebuild kit would solve this problem? Any advance out there.

I bought this S90 because I love Volvos and have owned many with no troubles but this car is giving me a run for my money and is really stressing me out. Thanks in advance all my brother's and sister's out there in Volvoland!