Supercharge? Nah, gash. Turbo it
As I've said before, it's what I would do with an S2000, but I'm probably a bit more hardcore than most when it comes to modifying halo models
Honda do crate engines from the current Civic Type R turbo. £4K. 320hp or what ever it is, tons of torque, tons of revs, off the shelf engine mounts. I'd be all over that. Way more interesting than something you can buy from a forecourt, imo.
You are in an enviable position my friend, financially, so just take your time and buy what's right for you
However.....911s, they are just something else. If sacrifices were to be made, sod the kids and family, hobbies come first right?