Greetings
There are lots of good technical articles and DIY instructions on this forum and several others. Here are some links:
Porsche Boxster 986 (1997-2004) / 987 (2005-2008) Technical Articles | Pelican Parts
PedrosBoard :: DIY Projects
https://sites.google.com/site/mikefocke2/mikesporscheboxsterwebpages
After reviewing these sites, you could assess whether you were in over your head and make a decision about whether you should cut your losses.
By the way, it is probable the RMS - rear main seal that is leaking. The IMS is the intermediate shaft bearing and they are the subject of many posts regarding their failure.
Good luck.
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2000 Arctic Silver/Black, Hard Top, On Board Computer
PNP Rear Speakers, HAES 6-Channel Amp, Avic Z140BH,
Painted Bumperettes, 2004 (OEM) Top, Homelink integrated in dash with Targa switch, 997 Shifter, Carrera Gauge Cluster with silver gauge faces, heated 997 adaptive sports seats, Litronics, silver console
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