very cool linkl and nice find. I believe the reason he went with the 740's instead of the 555's is because they were actually cheaper than the 555's at the time. Anyway, yes he does include them with the kit which is very conveinient. Mainly the reason I bought the kit is because all of the sourcing of parts was done for me and that I getting more lazy nowadays
Anyway, thatnks for the link, may come in handy in the future
Tom