First Light Optics are currently selling the Celestron C6-N newtonian reflector for £99. It is the optical tube only with dovetail and tube rings, 20mm eyepiece and 6 x 30 finder. You would need to find a suitable mount, but a brand new 6 inch telescope is rarely as cheap as this. There is a delivery charge of about £8. The link to the website is https://www.firstlightoptics.com/clearance/celestron-c6-n-ota.html.