I bought a Mark II FV-SR in .22LR yesterday afternoon. I want to get it in a new stock ASAP. I know I should also replace the bottom metal with DIP parts. Does anyone know if the Boyds tacticool stock is a drop in replacement with this rifle? And will the DIP bottom metal and trigger guard fit without any modification? I measured my receiver and it looks like I have the E series that measure 7.75". Thanks.