I agree there is no quick fix.
However, there is a lot you can do. For one thing, you can request an evaluation from your school. If you go to the LD in Depth section of this website, the section on Assessments and IEP will provide you with a lot of useful information. When a parent makes a request like this *in writing*, a school is legally obligated to perform the evaluation. If you disagree with the results of the evaluation, you have the right to request an IIE -- which is an outside evaluation by professionals of your choice, paid for by the school district.
If you have medical insurance, it's highly likely that you can get some other -- very important -- evaluations that will be helpful. One is a developmental vision exam (see http://www.covd.org) and another is a CAPD evaluation (see http://pages.cthome.net/cbristol/). (Both websites have search engines to find qualified professionals in your area.) These exams do very thorough checks of the visual and auditory processing systems -- the two systems most commonly associated attention problems and memory problems. Usually, if you call one of these professionals, they are able to tell you not only whether your medical insurance will cover the evaluation, but also what to do to make sure that they are covered (such as, get a referral from your family doctor).
PACE is not a reading program. It is a cognitive training program that develops a wide variety of skills. However, cognitive skills build on a sensory/motor foundation. If your child has an unaddressed vision or auditory problem, PACE gains will be limited.
My advice is to start with (1) school evaluations, and (2) medical evaluations in the areas of vision and auditory processing. Before you do anything, educate yourself by reading the information at the above websites. (For example, most audiologists are not trained to do CAPD evaluations -- you need to find a specialist in this area. Same with developmental vision.) Once you have some basic information, you will have the tools you need to get your son what he needs.
Money isn't everything. A lot of it is knowledge.
Mary