I recently bought a GP Patty Wagstaff ARF from a older club member. I/m at the engine mount stage and it looks to me like the the lines for aligning the engine are not centered on the firewall. Should they be to the right of center, because they look like they are. Also I am using a DA 50 from a previous plane I had. Is the firewall strong enough for that? the plane I took the DA off of had a much thicker firewall . thanks any help would be appreciated..