Go for it, Nick.
I'd have a damned good search once the shops re-open and have a good shop around, or see if anything comes up at the right price in the Sales Section. A wanted ad might bear fruit?
That same action you mention will also be available under different names, as many different rifles are marketed under different names. A friend of a friend got one last year, but I can't for the life of me remember the name.
Once the shops re-open, I'd guess there'll be a few used ones to be had at the right money.
You might also want to consider the Remington Pest Control that Pete Evans has on review in the current AGW? Think he got his for £60 brand new? He'll be taking a look inside it next month.
Something deeply satisfying about getting a low budget gun performing well. Indeed, some can impress out of the box anyway. With your expertise and knowledge, I can't wait for the outcome.