In the unblob it will not let me specify the base address and entry_point correctly.
I believe you should change line 79 to 83 to:
main_opts={'base_addr': opts.base_address, 'arch': opts.arch, 'backend': 'blob', 'entry_point': opts.entry_point, 'force_rebase': True})
(Just changing base to base_address and entry to entry_point)