[NEED YOUR HELP PLEASE!] Question about repairs!

[BYprodriver]

The little light on the water temp gauge blinking means the engine coolant level is low. Water pumps do go from OK to bad without much warning. OEM water pumps have plastic impellers that often break apart when the pump goes bad so when the old pump comes off it needs to be inspected & all those pieces need to be found & removed, otherwise they circulate in the cooling system & engine until they get stuck somewhere & cause HOT spots. Often they get stuck inside the heads & cause the head to crack. Since you drove the car a while like this it may have already happened.
Headgaskets NEVER fail on these engines. So if I were you & your car is at this shop I would be sure & examine the water pump when it comes off & find any missing peices that broke off. Be sure the new W/P is OEM manufactuer & replace thermostat & PORSCHE coolant. You need to find a mechanic that knows Boxster engines to address any other problems with the heads, engine etc. Tell us where you are located & someone can recommend a good shop.