ok thats good on the pistons make sure you use arp rod bolts get rid of the stock ones the porting is still a waste of money you will not see any thing on that so that rebuild i hope is not more then around 450bucks i hope..but yes for valve train i would go with kms springsand Titanium retainers around 240
or the rev set around 260
then a nice buddyclub or skunk2 S2 cams 350 if you can find them here,or 450+new
BUt you can then sell your cams to make up some of that money