the new tl is still a 3.2 therefore it is still a j32 and it only has 258hp
the amount of money you will be spending will be over 5000 easily especially if u cant do the work urself.
i would save the money and get a used cl type s or tl type s
the cl in 03 has a 6speed if manual is wanted
and then u still have the reliablilty and no worries about wiring