There's also what we might call the Zarah Sultana problem, which is that the UK has a law on political parties (the Political Parties and Elections Act 2009) and you can't just set them up in a half-assed way, sign a few forms and the Electoral Commission will recognise you. There are fairly strict rules on membership, donations, accounts and so on.
I would hazard a guess that Lowe is only dimly aware of these rules, and his approach will be to throw some money at the problem and let his bright young men sort it out. But maybe that's me being cynical, so let's move on.
Restore (via X) are claiming 110,000 members. I'll be extremely generous and not assume they're just making the number up. The problem is that these are people who have signed up to a mailing list run by Restore Britain Ltd, the private company set up by Lowe last year. They aren't members of a political party, because legally the party doesn't exist yet. The people who have donated £20 for the title of "member" because they want to support Rupert are in roughly the position of subscribers to a Patreon.
Once the "Restore Britain Party" is recognised, it will not be possible to simply port over the list of donors to Restore Britain Ltd and make them party members.
Even if it were possible, many of them wouldn't be eligible for membership. Lowe's popularity is largely on X, where the majority of his followers are American, and many of the rest seem to be European (judging by the strange idea many of them have that, if Restore gets 10% of the vote, the UK electoral system will give it 10% of the MPs) - this will fall foul of the rules against foreign donors, which will also be a problem for the idea that Elon Musk is going to bankroll the thing.
So there's quite a bit of complicated paperwork to be sorted out - remember all the trouble KJK had getting the Party of Women registered - and Lowe will have to rely on his clever young men not fucking it up and accidentally doing something illegal.
That's just the legal side, before mentioning things like no sign of any attempt to build branches, or his inability to get existing small right wing parties (Advance, UKIP, Heritage) to merge with him.
What exists on the other side of the ledger is a lot of SM noise (mostly from people you wouldn't want representing you), and a few private polls purchased by Lowe that prompt respondents for his name, which purport to show he's got support in the country, but where the pollsters feel they have to add a disclaimer saying "this doesn't follow our normal methodology so please don't compare it with our regular voter intention polls".
You can't meme a political party into success.
And the most recent example of a party being started on the back of a personal vendetta isn't very encouraging, especially since Alex Salmond was a much bigger deal than Rupert Lowe:
GUESTPOAST: Is Restore going to be like Alba?