1988 7745 hydraulic pump replacement

Hello, it's time for a new pump (which was purchased). Looking for some input or diagrams as to what else is needed. Doesn't look like it will too difficult, drop the round plate underneath, is the pump attached to the plate? Will I need "O" rings or anything, probably a new gasket for the main plate though? Any help would be appreciated.

Thank you

Yes, park nose down in a ditch and you can drop the plate without loosing oil

Indeed replace the two o rings om the standpipe too.

Thanks Renze for the quick reply.