if your know guest house or cheap rates hotel (wisma kos) in SOLO Malang Surabaya Semarang (or city and village aound, i plane to travel on month in this areas to visit jawa timur . you can give information about your place.
otherwhise if you have house with one free room (students /indonesien people), it can maybe feet. the price a location i can help you for you be my guide if you have motor to go here or there.
if you reach enought to no need my monnaie ( expat ) no problem if you like to have my visit
franck.schulthess[at]gmail.com
facebook.com/Reportages.Indonesia.