Figured I'd throw my two cents in.
I'm looking at a more DIY EV conversion route. I'd suggest having a look at the openinverter.org forums. Their plan is to use OEM parts from other makes and use them instead. Plan is a 200+ mi conversion for most cars £7k ish. If you're interested in EVs conversions it's place you should stop by.
I've a 1.6 FSI sport, with numerous things needing doing to it. Cam and clutch for a start, it has a misfire, which can be anywhere between cleaning an earthing point through to changing everything and still not fixing it. Has an oil leak which I think is the breather valve. \
Was purchased for a short period when in between cars and plans, as has everyones have changed, was doing 24k miles a year but now WFH fortunately.
Personally I'm looking at using the MGR motor off a Lexus, an electric powered rear diff (c. £200) about 50kW peak, with a Prius Gen 3 inverter to drive it (c. £150) the boards to drive the inverter and BMS around £700, then the choice of batteries which is currently a BMW Hybrid pack for c. 10kWh so about 40 miles ish, which is more than what is does in a week at present, which there's a group buy going on for about £600 for a pack. Need to sort the charging out though, but that front service flap is just begging for a socket behind it.
So a potentially cheap conversion, aim would be £3k, aside from having to learn about high voltage electrics, three phase motor control, tools, and more.
The more opulent thinking I've been doing...
I've also done some napkin math and drawings for LG Chem modules at ZeroEV, which I believe are out of an iPace, and think you could get 62.4kWh in at a push. Although that's 24 modules at £500 a pop, so £12k. Figure you could squeeze 8 under the rear seats, 8 more under the boot, 8 under the bonnet. Matches the space better than a tesla module so can squeeze more power in.
Would also need a larger motor for the extra weight. Which would likely be a Prius front transaxle. There's motors to fit the gearbox, but I can't help but think it should be direct driven as a more elegant solution. Which I think is more befitting of an A2.
I'm still a long way off touching the car yet. Want all those OEM bits working on a bench first, map/sniff the CAN, all before that. Also need to buy them first