i need your help asap on a decision over 2 bikes.

ok as most of you know i'm looking at a '86 GSXR1100 it needs windshield and the blinkers to work. and now i looked at a '88 katana 1100 that is bored out to a 1325cc. it needs rear tire, mirror, sprockets and chain, 2nd gear fork thingy(it pops out of 2nd), foot peg on the left side, and maybe a clutch cable.

the '86 GSXR1100 will cost me $1120+gas money(20-40 bucks). and the '88 katana 1100 is $1100.

which do you think i should get?
the link to more info and pics for the '86 GSXR1100 is:
http://www.suzuki-bikes.com/forum/showthread.php?t=4832

thanks for your help. i need to give the katana guy an answer within an hour or 2.