How much would it cost to replace everything in a iPhone se except for

Main parts:

Logicboard: They are all over ebay, they range from $80-$150

Screen/LCD no tools $34.99: iPhone SE (1st Gen) LCD and Digitizer

Charging port $19.99: iPhone SE (1st Gen) Lightning Connector and Headphone Jack

Battery no tools $24.99: iPhone SE (1st Gen) Battery

Other little parts:

Cellular antenna $14.99: [연계 제품이 누락 또는 비활성화 됨: IF124-043]

Home button $29.99: iPhone SE (1st Gen) Home Button Assembly

Home button Plate $5.99: iPhone 5s/SE (1st Gen) Home Button Bracket

Volume up/down and vibrator buttons $7.99: iPhone 5s/SE (1st Gen) Case Button Set

Power button cable $24.99: iPhone SE (1st Gen) Audio Control and Power Button Cable

Front flex $11.99: iPhone 5s/SE (1st Gen) Front Camera and Sensor Cable

LCD Connector Plate $6.99: [연계 제품이 누락 또는 비활성화 됨: IF124-044]

Rear Camera $39.99: iPhone SE (1st Gen) Rear Camera

Front flex Bracket $7.99: iPhone 5s/SE (1st Gen) Front Camera Bracket

LCD Shield plate $9.99: iPhone 5s/SE (1st Gen) LCD Shield Plate

Screws For Phone $9.99: iPhone 5/5c/5s/SE (1st Gen) Screw Set

SIM card Holder $9.99: iPhone 5s/SE (1st Gen) Nano SIM Card Tray

Earpiece Speaker $6.99: iPhone 5s/SE (1st Gen) Earpiece Speaker

Loudspeaker $19.99: iPhone 5s/SE (1st Gen) Loudspeaker

Vibrator $11.99: iPhone 5/5s/SE (1st Gen) Vibrator

The total adds ups to $300.82.

What I recommend is buying a new iPhone SE and you can get it a lot cheaper than $300.82. Also I didn’t even add the logic board into that $300.82 and that is the most expensive part of the phone. I hope this helps.