fast 98 C5

Can anyone please give me advice on coating and port matching, if its worth it.

Details:

434
4.250 crank
4.030 Iron Block
Ross Pistons
Oliver Rods
90/90 Ls2 and fast intake

adding
AR Headers
Trick flow Heads
New Cam
New rebuild

C5 A4 3.42 with built tranny and SYE 3800
ET streets

Should / is it worth it to coat and or port match parts while its apart ?

I just don't want to through money away.

Thanks,

Bill

PS: Car ran 10.6's

I ask because some people say no, some yes, and which parts are worth it.

Thanks again,

Bill