That wood looks pretty good to me. NEVER ever abandon teak unless absolutely necessary. Then replace it with teak.
I've never heard of Purple heart being used outside. I have done a couple projects with it over the years and can tell you it's not near as oily as teak... so I would GUESS it's not near as good outside.
I know you want to make your new "baby" your own, but think twice about doing other than upgrades or needed maintenance
until you "get to know her" :>)
Spend your winter making her as mechanically perfect as possible, so you have a carefree summer without trouble! Some possibilities:
*clean the fuel
*does the boat have a good secondary fuel filter
*what condition is the shaft log in? leak a lot?
drips? Clean the engine
* Anchoring gear
*Whip the line ends?
*any deck leaks
? rebed any fittings?
*clean and grease the winches.
*lights all working? upgrade to LED?
system do you have? will it keep up with the demand?