Cut and weld chrome bumper help

[pittpens24]

Hey guys,

Not sure if I am overthinking this or a bit scared treading on new ground. My new bumper(2nd one of two different companies - kept the best of the two) for my '68 Camaro fits like total crap. It needs to be have a wedge cut out of the drivers side to get it to follow the quarter with a nice gap. The passenger side needs the exact opposite done. Is it just as easy as your typical cut, v-grind, weld? Knowing I have to get the chrome away from the weld - 80 grit on a D/A? Also do you just weld and grind the front or do you weld the back of the seam as well? Ohhh and BTW - I checked before hand and they only make un-chromed bumpers for '69 first gen models

Thanks

**EDITED - PLEASE SEE UPDATE POST #10**