Best cheap stroller to use with Unity Baby Capsule?

I bought a P&T sports and love it. And I was going to buy the SNS baby capsule, but the SNS unity capsule was on a great special so I bought that instead. And now, after 4 months of lugging around my boofer boy (7.6kg) in the capsule (while my phsyio tells me to stop doing heavy lifting) it's suddenly occurred to me that I shoulda have got the stroller that goes with the capsule!!! I already have the indefinite loan of a Steelcraft Phoenix stroller (from MIL) which I use for shopping centres - but that doesn't fit the capsule. So saying, so I don't really need another umbrella stroller. BUT I've realised if I get one of the compatible strollers that would be a much better way of doing things (and easier on my back too!). So I saw that the Steelcraft Enigma Layback or Profile Layback are both compatible with the capsule. I'm toying with trying to get one second hand or just shelling out for a new one.

Soooo... my questions are... is it worthwhile getting it when he's already 4 months old... i figure i'd probably get plenty of use (and he's only gonna get heavier!) - for mebbe another 8 months (hopefully he won't hit 12kg before then!) with the capsule and of course I can still use the stroller after that. Plus we want to have a second fairly soonish, so would I get the use of it again once I've got the second bub, or end up using the P&T more with the two? (ideally we'll have about a 2 year age gap between them. DH was a bit confused as to why I'd need it - but when we're together, he carries the capsule. It's those short trips & appointments where I'm either lugging the capsule (which is really not an option for much longer) or I have to get DS in & out all the time... just popping the capsule in the stroller and not disturbing him just seems like a so much better idea! (And TBH I have NO idea why the shop didn't try to sell me the stroller!). Anyways love to hear your thoughts.

TIA
Belfie

I have the proflie with my unity, though I don't use it as much with the capsule anymore, as I carry bub on my back in an ergo alot. But I do love the profile, folds fairly small, easy to set up and put down, with capsule on the hoods can be put down on both so that baby is cacooned in side. I brought the two even though this is my last because with two other kids having the capsule was the best for school drop offs etc, and also being able to click it onto the pram and not disturbe sleeping bub was great.