Ask HN: Any advice on meeting a co-founder in London?

I recently started working on my B2B SaaS startup full-time and it's just me. I have a demo product which I am showing potential clients with the aim of having something production ready within two months.

I used to work in investments and I know ~50 potential clients I can contact directly to show the product to. Three firms have offered to take a look (of one offered to take the beta for a test drive). Two of my former managers in London and the US are onboard as advisors and will give my warm intros to potential clients as well

Prior to my time in investments, I used to be a software engineer so I learnt React and am using Graphcool to build my MVP.

I have savings for more than a year, I know clients and I can make the product myself. So given that, I am in two minds about getting a co-founder. On one hand, I know there's lots of work to but on the other I feel like I could potentially go it alone. Maybe an issue will be bandwidth between sales and building the product.

I have or had potential co-founders who were interested but they are in the US and I just moved back to London after 4 years away. I am really looking for someone London-based. Most of my friends here have kids or mortgages...or just like having a job....

I know a few HNW people who could potentially invest for $100k-$300k but I'm not really thinking about that now since I'm focused on building the product and getting product market fit.

Any advice on whether or not I should get a co-founder? If I were to look for a co-founder in London what's the best way to go around it? I've been away 4 years!