Couldn't get Wheel Alignment because of Modifications? Options

[DIONYZUZ]

The modification I have gotten were KYB GR-2 Struts and Tein lowering springs with 225 45 17" wheels. I tried getting a wheel alignment today but the mechanic said my suspension and wheels were "unsafe" on my celica. He went on stating that the wheel alignment machine could not align the wheels because of the lowering which affected the camber and caster. He said it requires a new bolt for the caster , but the caster is so so far off that the replacement wont even help the caster. Then he suggested to go back to OEM suspension and said "I owned a Celica GT before and those suspensions are already a sport suspension." Then he said the tires will rub and thats the main reason why there is a pull on the vehicle's steering which is what I believe is the reason it needed an alignment, but it doesn't even feel like theres rubbing. Should I get the new bolts and try another alignment? From what the mechanic said, it seems like nothing will help the alignment.

[DIONYZUZ]

I was looking for the 'cheapest' wheel alignment in my city, but it turns out, I should have stuck with firestone and had gone with their lifetime wheel alignment service. I didnt feel a good vibe when he was trying to explain to me that its not right when your able to push up the whole strut when pushing up the wheel as the car is elevated. I was like " I lowered it on purpose to have better corning and a sporty suspension and it should be normal to do that, it's at that state when the car is on the ground isn't it?" He went on stating " Yeah but your car is not going to handle bumps correctly and you are going to have to get more alignments more frequently." I told him the suspension feels alot better to me, it not all wobbly like a stock suspension and the bumps feel alot less intense. It felt like I was trying to tell a little kid that his imaginary friend does not exist, but still being polite about it. I am going to see what firestone has to say about it. I still let him adjust the toe on it for $70, even with that it felt like my pocket got raped. I kinda regret that >.< ,but ah well at least I got a free tire rotation. And now instead of a pull to the left, it's to the right.