Yep you definatly need a longer eyepiece , as the 6.5 is about 270x ,, thats way to high .
Looking at the scope , yes it aint to bad , I would just give the outside a quick dusting , the tube not the glass .
Google AndrewsCommunations , they have 2 inch eyepieces for $49 - $79 I think and the 26 mm and 38mm would be perfect , the diagonal looks like a 2 inch model ? measure the main hole where the eyepiece goes - without the adaptor .
Those diagonals can come apart by unscrewing the back ( 4 screws ) and carefully removing the mirror , dont touch it with your fingers!!! as the oil in onr skin damages the coatings . Do this on the table with a towel laying on it .
. Just in case you drop it .
Then put it on a tea towel in the sink and blast it with high pressure warm water from the tap for 5 miniutes . This will disloge the worst of the dust without hurting it .
While you are doung that get some real " Sunlight Soap" diswashing detergent , nothing else as this is the best ( 10 drops in 5 letres of warm water in a plastic container ) , use nothing else ! .
After the blasting place the mirror , place it in the warm water with the mirror up , close the plastic containers lid and put it aside for a few days to soak .
.
We will get back to the mirror then .
On the mount , is there another counter weight ? that single one looks way to light to balance the weight of the tube , you may need another about a 5kg one from Bintel , gooogle that as well , not to dear .
Equitorial mounts wont work unless they are balanced properly ,
another way to loose intrest real fast , trying to use one unbalenced .
Whew .
Stick with it mate we will get there .
Brian.