Well since you have the 3 speed OD stuff on hand now, with everything you would need to do the swap, I'd say swap the auto for the manual. It will be a lot "peppier" that than automatic, and will save gas mileage as well. 
Matthew Burnette
'59 Scotsman
'63 Daytona
Hazlehurst, GA

Matthew Burnette
'59 Scotsman
'63 Daytona
Hazlehurst, GA
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