Updated!
The numbers for the position check out. Currently you have 250 applied TPE and you are allowed to move 50% of your applied TPE which would mean you could move 125 TPE and would have to retain 125 TPE. However, currently this build only retains 64 TPE from your previous build. However, you have 124 banked TPE at the time of the switch, so we can apply that TPE before processing the switch. If all 124 TPE was spent on attributes where it would be retained after the switch (i.e. 120 to Strength to go from 55 to 84 and 4 to Pass Blocking to go from 25 to 29), then that would give you 374 TPE applied which would mean you must retain 187 TPE and can move 187 TPE. Since you would be retaining the 124 newly applied TPE in addition to the 64 from before, that means you are retaining 64 + 124 = 188 TPE which is 1 above the minimum you are required to retain. So this switch retains enough TPE and the new build is valid.
Additionally the maximum height for an Athletic Lineman is 6'7", so you can't be 6'8". I will set you to 6'7" to meet the archetype maximum.
The numbers for the position check out. Currently you have 250 applied TPE and you are allowed to move 50% of your applied TPE which would mean you could move 125 TPE and would have to retain 125 TPE. However, currently this build only retains 64 TPE from your previous build. However, you have 124 banked TPE at the time of the switch, so we can apply that TPE before processing the switch. If all 124 TPE was spent on attributes where it would be retained after the switch (i.e. 120 to Strength to go from 55 to 84 and 4 to Pass Blocking to go from 25 to 29), then that would give you 374 TPE applied which would mean you must retain 187 TPE and can move 187 TPE. Since you would be retaining the 124 newly applied TPE in addition to the 64 from before, that means you are retaining 64 + 124 = 188 TPE which is 1 above the minimum you are required to retain. So this switch retains enough TPE and the new build is valid.
Additionally the maximum height for an Athletic Lineman is 6'7", so you can't be 6'8". I will set you to 6'7" to meet the archetype maximum.