The mimicking portfolio should consist of the following positions based on the regression results:

1. T-bills: Since the market factor (MKT) loading is 0.55, the remaining percentage in T-bills would be (1 - 0.55) = 45%. This allocation is to hedge against market risk.
2. Market Portfolio: The investor should have a 55% exposure to the market portfolio, which is the risk premium associated with the MKT factor.
3. Small Cap vs Large Cap: With a SMB (Small Minus Big) loading of -0.63, the investor should be short in small cap stocks and long in large cap stocks by 63% each. This implies a preference for large cap stocks over small cap stocks.
4. Value vs Growth: The HML (High Minus Low) loading of 0.36 suggests a 36% long position in value stocks and a 36% short position in growth stocks, indicating a preference for value stocks.
5. Momentum: The UMD (Up Minus Down) loading of -0.07 indicates a 7% long position in past losing stocks and a 7% short position in past winning stocks, favoring stocks that have performed poorly recently over those that have done well.

Given these allocations, the correct answer is B, which states a USD 360,000 long position in value stocks. This is derived from the 36% long position in value stocks, which translates to USD 360,000 for a USD 1 million portfolio. This position aligns with the investor's strategy to mimic Fund CRN's high alpha-generating strategy through a factor regression approach.