This excerpt from a book about David Bowie states that Ronson used a Vox Tonebender.

In this video the current owner of Mick Ronson's iconic and highly modified 1968 Les Paul Custom details the history of this instrument while demoing the piece of glam rock history that helped define the sound of Bowie's Spiders from Mars as well as late period Mott the Hoople.

Acquired in this lot of Ronson's stuff.

At 12:03 in this video, Mick's Marshall 200 is shown and talked about.

looks like a picture from a photo shoot or a magazine.

if you go to the website and scroll down you will see it. not sure what show it is from or what year it is even from.

Main live amp, 200 watt marshall circuit

The same guitar Bowie use.

Mick can be seen using the guitar in this video.

Acquired in this lot of Ronson's stuff.

Mick used the Roland while playing with Ian Hunter in a club in DC.

Around 35 seconds in there's a photo of Mick playing the bass.

Acquired in this lot of Ronson's stuff.

Acquired in this lot of Ronson's stuff.

Acquired in this lot of Ronson's stuff.

Acquired in this lot of Ronson's stuff.

Acquired in this lot of Ronson's stuff.

Acquired in this lot of Ronson's stuff.

This piano was used in the recording of David Bowie's early albums as it was the studio piano used in many famous artists including Queen, The Beatles, Elton John & Manfred Mann; that recorded at Trident Studios in London.