a teg for 1k? thats a good deal, a gsr motor sells for about 800-1200 w/o tranny pending on miles and engine wear, if you have connections, you can get a new clutch in it and it would be fine. u can use steelies from your teg to sub, and u will be 2 seconds faster.
i don't have a teg but i have rode in a LS and a GSR, butterfly vtec kicks ass