Hi everyone,
Thanks for all the advice!
Thank you especially to @Elnnina @Bodgeitandscarper and @StitchinTime i rang up Machine Steve & he was really nice and helpful.
I I ended up with the one you mentioned on the FB page - the Janome360DC with extension table.
It looks lush. I’m going to have a go on it and let all you know how it feels.

It’s not as heavy weight as I initially desired, but I decided I can always get an old straight stitch table top jobbie for anything mega thick that I want to stitch.

Thanks again. It’s very purdy  xxx

Thanks @CraftyIrish
Yes, I think the 4423/4432 have more stitches, but I am looking to be able to do large quilts... eventually 
So I think I will look out for a second hand model as others have suggested.
Thank you 

 Hi Everyone,
I am a new member.  I have been sewing in on way or another since I was a child, when my stepmum gave me her Singer Magic sewing machine. I took it to uni with me, where I studied a Textiles Degree and it survived me feeding it plaster of paris and wool concoctions. Yes I used it and abused it, but it never let me down.

I went travelling a few years back and had to sell most of my stuff and so it had to go... Since then a friend gave me her very basic E&R machine, which was pretty awful to sew on, and I finally killed it making hundreds of face masks during lockdown.

So... I would like to purchase another machine. My limit is around £300, but I would like a machine that I can quilt on, but isn't going to break easy - none of these plasticy flimsy machines.  Ideally with drop feed for free motion quilting and a extension table/capacity for one.I am new to quilting, but would prefer an intermediate machine as I'm not new to sewing.

I've so far been looking at Singer Heavy Duty 4423/4432/4411, or Brother/Janome machines.   
If anyone has any advice it would be greatly received.
Thank you