About any
good Porsche independent shop could help you: Black Forest, Performance Porsche, Mirage International, Dieter's, All German Auto, etc. Check out the Optima for a good, reliable, spill free battery choice. Depending on where you live and whom you choose, you might be a ble to "pre-order" the part and wait while they install it.
Dan Chambers"It's
just a "well prepared" street car ... or a very, very well-mannered track car."
1983 SC #91 3.6L, "Black Pearl" Livery
1987 944 (gone but not forgotten)