Very interested to see you spent one month in Bukit Lawang and that you are female.
I sincerely hope you did not fall in love with one of the locals and this is your motivation for wanting to open a place there.
If so, I would tread very carefully.
I have spent a lot of time in that village of BL and spent years on the internet helping the village after the flood of 2003, so I know how easily it is for females to get caught up in wanting to open a place there because some local has captured their heart.
You are more than welcome to email me at pamela_fuge
yahoo.com.au to discuss this further privately.