Recording dialog in hallway

[Gohanto]

Working on a film with a scene between two character talking in a long hallway at my school. Reverb seems like it's going to be a huge problem and I was curious for any suggestions.

Current mic I have access to is a Sennheiser 416, but if there's a chance I can get usable dialog I can go up to $500.

 

[Oleg 2]

use lavaliers if you have problem with headroom on walk and talk and if you cut sthe scen for stopping use the 416 from bellow + som blankets in front of the actors .
if you have aditional track use the 416 from above with 2 lavaliers , then in post blend some to make them a bit more open sound