Umm, buying cars online seems the norm these days, personally I’d always want to get a good look, and equally important, check out the seller.
If you aren’t mechanically minded, getting an expert check it over is money well spent, a bit late now for you I guess.

If it were me, I’d be taking ...

Oh dear, I think you have a lot of work coming your way, did you check the MoT status for the last few years ?
https://www.check-mot.service.gov.uk/results?registration=P125BNW&checkRecalls=true
These companies do a range of spares, not all will have everything so try them all;
For smaller parts ...

Hi
I joined the club today and purchased a 97 Bongo 2.5 Diesel. Now I know I'm an idiot but we (Mum & I) agreed to buy it and have it delivered from Birmingham (solihull) to Eastbourne before clapping eyes on it.
It arrived at lunchtime on the back of a tow truck. Alarm bells went off but Mum said ...