Got a bug from one of the kids, felt ruff this morning and throwing up all afternoon :-(

Any way should I spend money on my 2001 FireStorm or sell up to a SP1 or 2?
Need a "Roger'd" front end £230 ish
A new rear shock £350+
2 new tyres
New braided hoses, pads and fluid £150+
New CCT's to be safe £50
New Cans £300+
New jets and needles £80+
So £1200 ish plus my time. To make it handle for the track days next year.
Or Sell the bike £1600+ and but a SP1 or 2
How much to get to a SP1 or 2?
How close is a moded FS to a SP1 or 2? 70% less or more?
Just some plans ideas whilist I sit in bed.
Happy Christmas