Hi
I think if you're serious about buying it then I'd definitely use the 'Make Offer' button and offer lower than the starting bid based on other recent Portafolds that have sold requiring less work and have been in better condition inside and out. That said prices for everything are higher than they used to be thanks to the current situation, so I'd guess that you likely would be pushing it to get more than £150 accepted off that price and with only three offers available for you to make, it would require careful thought.
It also depends on your budget for the rennovation, how much you reckon you can do yourself and how much you'd be willing to have a caravan mechanic/boatyard do and how much you'd just live with if you have it as either a long term project or a caravan to start holidaying in as soon as possible.
Accepting the description as accurate then it doesn't look too bad from the photos. If you want a work list of what I would do with an infinite budget and in no real particular order...
1) Purchase two roof straps so the roof can't fly off while towing/when pitched (none are shown in the eBay photos).
https://www.portafold.co.uk/parts_and_s ... strap.html
2) Repair the missing gelcoat from the lower lip of the front body (cheap repair would be a surfboard repair kit).
3) Address the damage (hard to tell if it's just scraped paint, or missing gelcoat) to the front corner and side wall lower corner.
4) Restore the missing rear number plate light (the retro-fitted left brake light covers the original location).
5) Attach a number plate.
6) Repair the crack in the roof (running from the right hand corner of the Left hand triangle awning rail down to the lip). I'm hoping for these tutorials helping our own restoration out (
https://www.youtube.com/c/boatworkstoday/videos)
7) Find out why there appears to be a bolt driven into the lower right corner of the rear of the lower body (in direct line with the right rear light cluster).
8 ) Check the right wardrobe (when outside facing the door) top panel to see if that is again missing gelcoat or just missing paint.
9) Have the brakes/running gear serviced by a caravan mechanic (or classic car mechanic) who is knowledgable with older caravans (I say this because one of our old caravans had a mechanic jam up our wheel bearings because they were used to modern bearings) or do them yourself (
https://www.portafold.co.uk/servicing.html).
10) Remove the foam cushions (which I see are in zipped covers) and check the foam is still okay.
11) Wash the zipped covers, decide whether to replace.
12) Wash the walls as they appear in the photos to be either dirty or mildew stained. Consider ripping off the lining and painting instead.
13) Repair the crack in the left hand seat locker, and avoid sitting on it till you do
14) Replace the missing hinge tape (you can see the glue strip where it should be).
15) Check the hinges are well oiled, if they stick they can rip chunks out of the caravans panels.
16) Clean the insides of the lockers.
17) De-rust the window hinges, this is based on them looking brown in the photos, but it's too far a shot to tell for sure.
18) Remove all the exterior paint back to the original gelcoat as it can hide a multitude of sins.
19) Remove the interior paint from areas it shouldn't be.
20) Check what the grey patches are in various places on top of the roof.
21) Inspect the floor since it's covered in cushions.
22) Consider removing the additional brake lights.
23) Check the age of the tyres.
24) Repair the dipped roof (apparently, not needed to do this myself) some people fix them by pouring boiling kettle water into the roof when its upside down.
25) Check the steadies aren't bending away from the chassis when wound up/down.
Probably more than just that once you get started proper, but as I said before it all depends on what you'd want to do with it. The one I'm helping to restore cost around half the price and requires at least double the restoration if that helps to put things into perspective for you.