400 with TF 240 heads - valley plate options?

I talked to the trick flow tech department he told me the 2 piece Valley tray will work but there is a gap between the head and tray that would need to be filled in, and instead of offering for the 240 heads and getting complaints they just offer it for the 270's and fits better
I would think that Trick Flow could/would make a part that works with each head well. They can sell me a nice set of heads for $2200 but as far as the $150 valley plate, uhhh, buy a tube of silicone & good luck.