Pacific Retail Group, which revealed earlier this week that it had bought a 15.5 per cent stake in apparel maker Bendon Group from Tower Asset Management, says it intends to offer NZ$1.90 a share for the whole company.   The offer values Bendon at NZ$58.7 million. "Our primary intention is to gain operational control of Bendon and grow its value, as we have done with PRG," said Pacific Retail director Phil Newland.