At your budget the K&K Audio phono stage should be considered. Also, a couple other options are Decware ($1400) and the Hagerman Coronet ($1k). All of these are tube designs and except for the Decware, one piece units. The Decware is quite compact for a two piece and should work in your rack. I purchased a Hagerman Trumpet whose size and WAF won't work for you, but had I known about the K&K that would have gotten serious consideration. I use the K&K step-up with my Hagerman and the quality is excellent for the cost. I have had the Decware in-home for a trial and can also vouch for the quality of Steve Decker's work.