Unfortunately there is very limited availability of true intermediate eye relief scopes. The leupold fxII 2.5x scout scope is the best of what's currently available, and possibly anlittle more affordable is the Burris scout scope. They both have approximately 8 to 10 inches of eye relief and will both work well for your application.
You might be tempted to try some of burris's handgun scopes; my advice would be to pass as they at set up with too much eye relief to be optimal for use Ina rifle type application.
Good luck with your project,
Brobee