IMO yes you do as you don't want to be going back in there later on (been there and done that ). I don't know the cost of Honda bolts but I got ARP flywheel bolts for £60.
Edit - Honda bolts (90011-PH3-000) should be £30 - £35 for the set of 8.
No my pressure plate bolts came loose (my own stupid fault though). I got my ARP bolts from XS Performance. You need to use the B18 set of bolts as they don't advertise they fit the H series. Ebay has sets for under £60 but have a hunt .