I got a good pair of shocks on my bike rated for me for 220dollars the pair and I very happy with the result. There was no offset problem, they are very well finshed, they look good and fitted straight up with no problems, correct length and custom rated springs to my weight. They are quite good on the ruts and large bumps to boot. I have had someone tell me who has many years of experince he used them instead of his 400-600dollar shocks and reckon they were better. At 180 you should give them a go.
I also was quoted 400-500 Bucks to rebuild I think it would be worth it for looks and also orginal purporses. I will get it done soon. Anything is rebuild able anything it is just up to how much effort you want to put in.
Cheers
Nutz