Another Newby Question about where can I get the kit etc.

I have been trying to quickly climb the Satellite Internet Knowledge curve so please forgive me if I make a few mistakes in my logic.

I live in Rural South of France and have a Motorhome in which I tour Europe and spend about six months in each per year.
I need to get reasonable internet while away and at home so I can manage our small UK property business which is our pension. At present at home I beam my internet from a friends house 7 km away which luckily I have line of sight to. Unfortunately SFR has messed about with their cables and we are only getting 0.5 mb/s rather than the 3.5 mb/s we are used to which was perfectly adequate. While away I have to search out McD's and FON hotspots which is not ideal.

So I am looking at the Satellite route but it would be essential really because of cost to use it while away, so I thought as we have an 80cm Motorised Satellite dish on the van I could add an iLNB to that and I also have a spare 80cm Dish on the house because I have had to install a 1.2mtr one to get UK Freesat TV. I could then move the Modem from the van to the house.

I have established that the Ku band is probably what I need as it has a footprint covering most of Europe and I understand that I would not have to notify the ISP as I move from place to place as I understand is necessary with the faster Ka band typically from TooWay.

I have searched and searched but cannot find a supplier for the Modem and two iLNB's I will need. Because of space I need a particular shape of iLNB. The attached picture shows the exact dish I have on the motorhome set up for TV and internet.

Any help or suggestions where I can get this kit and if any of my ideas are wrong would be gratefully received. As would a good ISP for my purposes I am looking at satelliteinternet.co.uk at the moment which looks to be the best value and most flexible although they have not yet answered my email sent a few days ago.
SteveJay

Thanks Eric, perhaps I didn't explain myself properly, It is Astra3 at 23deg I need to use for broadband so I can use Astra2 at 28 for automatically aligning the dish on the motorhome from the TV feed from the offset LNB. And I have found a number of ISP's so just looking for recommendations here really.
The ISP's will supply the kit but want to supply the lot including dish inclinometer etc. What I need is a supplier of just the iLNB's and Modem I have searched on the internet but can't find any or maybe I am asking the wrong questions.
Steve