Shorten up the toplink, but then the mower may run nose down.
I had to get extensions for my Super C, when using my RM Woods finish mower. They set back aprox. 8". I do believe these were Woods brand, and don't remember the cost.
Would a 3 pt. quick attach set it back far enough..?? Most appear to set the attach point back several inches.
Or, make some brackets for on the cutter, to set the pins ahead.