Fame-obsessed Hilaria Baldwin is reportedly setting herself up for life without husband Alec — and insiders reveal she’d love to become the latest Real Housewives of Beverly Hills cast member, RadarOnline.com has learned. Alec is said to be “terrified” to go to trial in July for involuntary manslaughter charges for his role in the death of Rust cinematographer Halyna Hutchins. If convicted, Alec faces up to 18 months behind bars. The 40-year-old yoga instructor-turned-celebrity socialite, who lives with the embattled actor in New York City, was recently spotted hauling her seven children aroun…