its not going to dissapear overnight bro...
just do a pushup/pullup/one legged squat(great time to learn them man...seriously) type program. Pull out the pencil and start getting creative with the progressions etc.
Superset them to help with conidtioning.
one legged squats, Superset with hill sprints, WILL KICK YOU'RE ARSE!! do them three times a week, using a rep progression and you'll probably come home with bigger stronger legs!!
with the pushups, mix it up. Normal stance, narrow(tri dominant), dynamic(clapping n shit), work up to one arm pushups and handstand pushups. Again, this is the perfect opportunity to learn new stuff mate. If you cant do handstand pushups yet, in 8 weeks you should be able to work up to 10 or more! That will help you're overhead press when you get back. you'll probably be stronger there too...
Pullups...millions of options there. Do "L-sit Pullups(or whatever the fuck they are called)" if you're already good at pullups...and if you are good at them, take it up a notch and work towards high rep clap pullups, and muscle ups...
Shit there's so much you can do without weights or a gym.
OH! and yes, buy some bands. Order em online if not availiable in town. use for everything.