240 symbs in non core spots would be possible at tl5 if only there was no lvl lock (same goes for ql 300 cmerc), infantry symbs are very easy to equip and treatment ist a problem as i could get 1521 for feet implant at lvl 170 then i guess you could have way more, with +40 coming alone from first aid perk.
SE helmet does proc its healing even when its OE if anyone cares.