Hi Hope. I've been reading your sitch, but hadn't posted to you yet. I agree with Toots, he's baiting you. That was a very passive-aggressive line about sex. I would ignore it. As for the gun range, I think I would say something along these lines...
I appreciate your offer to test my new sights, but since they are for me, I would like to be there. I have some plans already scheduled for next week, but if you will let me know when you plan to go, I will try to meet up with you to test them. If not, I'll test them later myself.