Callis doesn't mention the limit on undrafted players, except to say that the amount for picks 11-20 that won't count against the bonus pool has increased from 125k to 150k. So maybe the same for undrafted players.
Figuring out the first round draft order is going to require a spreadsheet.
And the JC draft and follow is back, baby! first $225k wouldn't count against the bonus pool.
Lots of details to surf through: