R33 Hicas wiring delete

[Blakeo]

Hi guys, just wondering for those who have done a Hicas delete. What did you guys do with the spare wiring in the boot? Going to get a 38mm blind grommet from Clark rubber today to seal up the big hole.

I've also noticed unfortunately my 33 has tiny rust holes underneath the spare tyre where I guess the water has caused from where it use to pool up from the headlights letting it in. 

Is it appropriate to use body sealer to seal these up, or is there a better solution? I'd wire wheel them, then paint and body seal over. 

Thank you.