If I had to replace my dynasty it would be with another one or possibly an executive, BUT it would be a 04-07. That unit has only one slide and it's the small one that only goes out 18" not 34 which started around 03. In 04 they went to four slides. Not a bad price but for the same money you can buy a unit like mine.
This post is my opinion (free advice). It is not intended to influence anyone's judgment nor do I advocate anyone do what I propose.
Sold 04 Dynasty to our son after 14 great years.
Upgraded with a 08 HR Navigator 45โ...