Rocker arm step ups

ok guys this thread seems appropriate. rebuilt 360, bk107's comp cam that is .48 lift or very close to that. trick flow push rods and comps springs. used the old rockers and shafts, but after lookin at them i dont like what i see (rockers arent on center, and i do get a small tick, so time to renew the whole rocker assembly, but i have a few questions.

ill most likely get the rockers listed above, and http://www.summitracing.com/parts/slp-rs-626/overview/make/chrysler

but, i also notice the spacers, will i need those as well? if so what thickness?


as a deluxe option should i spend a little more and upgrade? http://www.summitracing.com/parts/pro-66869/overview/make/chrysler