Ignition Module repair

I own a 1990 Buick Regal 3.1 multi port FI V6 with 62k on the odometer. The car stalled four times, The RPM would increase from 500rpm to 1200rpm and then back down eventually stalling. The fourth time I couldn't get the Regal started, and there was a heavy odor of gasoline. Towed the car to the Buick dealers GM Goodwrench service department. They tell me that the ignition module is bad and needs to be replaced. GM Goodwrench soaked me for $97.00 and told me the part is $300.00 and the labor is $300.00 bringing me to a total of $600.00. GM Goodwrench has great technitians but, is a little to expensive for my blood and I feel I can do the repair myself for a lot less $$$. So I towed the Regal back home. I have the Haynes repair manual for the make & model of my car, and understand the repair instructions. I have worked on my other vehicles and am familiar with repair proceedures.
Question is, because the ignition module is in a tight spot, do I need to remove any additional parts to gain access to the module itself? The Haynes manual explains the replacement well but does not mention anything about access to the module itself. I have the ignition module orderd and can use any helpful hints regarding the rpair of my Regal.
Thanks for your help!