Can I combine self-directed 401k money with other savings for acquisitions??

[Dustin DuFault]

I'm trying to work out acquisition scenarios with my various 'bins' of money to facilitate a flipping strategy. I've researched the solo 401k option and feel this will most closely align with what I'm trying to accomplish, but surprisingly I'm not seeing a lot on the topic of combining this source of capital with other assets of the business owner. Here are my sources of capital...

-$111k; 401k, fully vested, etc. (so: $50k via the loan option)

-$48k; LLC checking account

-$35k; Personal checking account

-$40k; Available as a loan from family

-I'm also interested in utilizing hard money lending for leverage

So help me out BPers! Each of these pools of money would be insufficient for me to comfortably flip from just one source - in fact for safety I think I would want to have access to those 401k funds to provide a cushion. 

I know I can fairly easily access the $50k via a loan in a self-directed 401k plan.... but would I also have the option of using my full balance from those funds and splitting ownership of the property between the plan, my LLC, myself personally, etc???

Can I also combine the 401k with hard money and private financing?

Thanks for your help!