Upsides To Making A Portal To Heaven  
    To  Build   The   Factory  There    
  
                                          
 First Of  All, Real Estate:  The  Highly 
 Fractalized  Geometry  (Not  Proven  But 
 Likely To  Be The  Case)  Implies Almost 
 Unlimited Room; Even If The  Portal Tech 
 Would  Be  Stolen,  Chances  Of  Running 
 Into  A Competitor  Is  Close  To  None, 
                                          
 Secondly,  The  Resources:  Heavens  Own 
 Alchemical  Properties   (Proof  Exist!) 
 Makes  Most  Base Materials  Easily  And 
 Readily Available.  Once  The  Molecular 
 Movement  Patterns  Are Mapped Out,  Any 
 Compound   Can  Be   Created   Virtually 
 Without                            Cost. 
                                          
                                          
  
  Downsides To  Making  A  Portal  To   
  Heaven  To  Build The Factory  There  
  
                                          
 Current Portal  Tech  Takes  Some Energy 
 To Hold Open, Which Isn'T  A Problem  In 
 Itself.  Test  Results However Has Shown 
 That Without An  Active Tether, Heaven'S 
 Time Flow  Breaks Down Completely.  Even 
 A  Momentary Fluctuation  Of  The Portal 
 Would   Render   All    Remote    Assets 
 Practically  Lost.  Much  Care  Must  Be 
 Taken  To   Maintain  Portal  Stability. 
 (One  Option Could Be  Several  Portals)