The alternative is to remove all of the adjusters from the rocker arms. Now the stands can be bolted down without resistance, it just takes longer to re-install the adjusters.
If you have removed the rockers from the shafts, pay particular attention to the assembly order. The rockers are very different, 4 sets of 3 identical rockers as follows:
3 each 8° left-handed offset intake rockers
3 each 8° right-handed offset intake rockers
3 each 1° left-handed (almost straight) exhaust rockers
3 each 1° right-handed (almost straight) exhaust rockers
