Thanks guys, I'm aiming to be on the road for Goodwood next September, which I don't think is unrealistic now I've (mostly) finished the Midget. I just need to get on with it.
The MGF alloys kept nagging at me every time I went into the garage so I'd occasionally look for wide fives on ebay. Originals often crop up in ones and twos in varying condition, and while reproduction ones are available, I really wanted an early matching set in the slotted style.
So, when a full set of five 4x15's that had been blasted and painted OEW came up locally for a starting bid of just £50 I pounced and won them as the only bidder.
I already had a set of Triumph to 4x100 adaptors on the shelf and the 4x100 to 5x205 adaptors were £25 each from Limebug. The adaptors widen the wheelbase by a total of 100mm, which is around 40mm less than splined adaptors for MGB wheels did on my Spyder. I'd already replaced the spindly Triumph wheel studs with Land Rover Freelander ones - they're a straight swap - so I've no concerns over the adaptors failing in use as the LR studs are made to cope with a vehicle four times the weight of my Speedster.
When looking at tyres I was tempted by 155/8015 Vredestein Sprint Classics, but settled on 165/65/15 Uniroyal RainExperts which are half the price at £200 for five, and I know grip like limpets on the road as I had a set on my Spyder.
They also fit without fouling anything while the Vredesteins would've been marginal as their sidewalls are 16.7mm taller and there's only around 17mm clearance on the Uniroyals.
Anyway, if anyone wants a set of five MGF square peg alloys complete with wheel bolts and centre caps and fitted with new 175/65/15 tyres for £100 (collect from Downham Market, Norfolk), PM me and they're yours. (more pics on the 'for sale' thread).
Anyway, Merry Christmas to one and all!