Economical replacement rocker arm set?

Today I:
Cleaned the #3 intake and exhaust lifters. Made sure the pushrods were all the same length.
Switched the #1 and #3 rockers
Videoed the cam lobes to ensure they were wearing correctly.

And the tick is still there.

I guess my next trick will be to switch to Yellow's adjustable rockers and new pushrods.

The quest continues.
look at you, diagnosing this! good job!