The way the gears are done in a hp30 causes them to be ~25% stronger than a lp30. I would prefer to have the stronger front axle so I can wheel it without worrying about breaking an axle. The hp30 and 8.25 29 spline are a good match when it comes to strength.
Thanks for the offer but I am going to hold out for a D30. I should be able to find one with 4.10s in it for less than $150. If not, I have a nice 8.25 and hp30 with 3.55s here that I can just swap in or regear to 4.56.