Why a totally new scope that has the same or even smaller aperture?
Have you looked into adding a set of digital setting circles such as the
Nexus line from Astro Devices?
For less than half the cost of a new SCT, you can pimp your existing scope with a database of 2.5 million objects from 65 separate catalogue and a pointing system with a resolution of sub-second of arc. With this degree of resolution you can identify ALL individual objects within the LMC. This is actually something no goto system or other set of digital setting circles can do.
You can also use whichever existing planetarium app you have on your phone, tablet or computer with wifi connection.
Alex.