If you want a mid 11 street car that is affordable, your first order of business is to sell the 97 and buy a 99+.
On a serious note, you'll first want to pull your engine and forge the rods/pistons. While you are at it, change out the heads for some PI heads and get (can't remember what pistons lower the compression ratio...dished? Whatever it is, get those) so you offset the CR spike that the PI swap gives you. After that is done, get some VT stage 1 or 2 cams, PI intake w/ aluminum crossover (if you do a centrifugal supercharger otherwise skip the PI intake and buy a Kenne Bell).
Then buy all the supporting mods (fuel,
suspension, etc) and you'll have an 11 second street car.
Estimated cost: $10,000 minimum? Depending on who does the labor it could be less if you do everything yourself
Blower: $3000 minimum for Centrifugal, $3600 minimum for Twin Screw plus you'd probably want an intercooler
Internals: $1500
Cams: $500
Tuning: $500