I have two, both with anti Newton ring plates and I understand they usually come with these plates - One of mine does not have a filter drawer, some later models did, but I just lift up the lid and pop a filter in if I need to - The acme of these enlargers for me is one with an Ilford Multigrade head, jut perfect - I have never been in the august company of a V35

Regarding dust, flip up the 1c head with the side lever, have the enlarger light on and you will see any specs of dust glowing at you and asking to be flicked off with a fine brush - Do not blow spit on your neg'

If you are having to change filters on a regular basis and are working with similar subjects check your neg' exposure and development - When that is right you should be able to print on multigrade paper without a filter