A torque converter, flex plate question, and install question..

I have the same flexplate so it looks like it is a go except I don't have the bolts for the flexplate to converter in my pile of bolts...any idea what size...my tc is a MOPAR.

How do you get your hands between the engine and trans if they are mated and do I need to torque them or do I use a lock washer ? I intend to "blue" all the nuts.

ian.