[Big Vern]

Hi Tatey,
This is not a rant and not to be taken as such. I would just like to point a few things out mainly 'cos I've been down this road myself and it don't work out the cheapest in the end. (more of that later) It's still fun though just don't be under any illusions it the cheap route. But hey it's whatever you want to do.
No rebore and new pistons or reground crank? no oil pump either, hardly fully rebuilt....
Reground crank will likely cost £10 per journal and rebore and hone typically £60-£80. Last time I bought CVH pistons (late 1990's) they were £150+vat for O/S. and what did your mains cost at least £25 I would have thought for cheapo brg's Oil pump - cheapo £20
added to your rebuild cost I make that £70+60+25+20+let say £100 for pistons that's £175 + your £150 = £325 and we've not investigated the tuning costs yet.... £325 and it's still a 90bhp engine!
Vs £75 on a Zetec with no history - take a chance, to £150-£250 for a known good engine with history/money back guarentee.
Even the Duratecs are coming down to around the £250-350 mark!
As regards the finacial implications, scanning pistonheads and other kit car for sale sites for '7prices typically the '7 type cars with Zetec engines are fetching higher resale prices than those with non 2.0 Pinto's and CVH's. typically at the moment upto £1000 difference!

Building the Haynes roadster or any other for that matter is about what YOU want to do and about what you want to get out of it.....above all it should be fun and enjoyable. I already spent a silly amount of money on the engine (for a previous aborted project years ago) and could have had the same power from a zetec for a fraction of the cost....
There is always great fun to be had tuning an unpopular or difficult engine but the costs are high. For those on a budget the most cost effective solution currently IS the zetec...
Here's what I'd do: Invest in a Zetec engine now it would be the most sensible. (yes I know I don't usually apply good sence to my decisions) - even if I stripped it to check it out it's still a zetec and makes the end product more appealing both as a vehicle to drive (after all you want one!!!) and appealing to any potential purchaser if you decided to sell in the future.
That's what I'd do - except I'm build mine with MX-5 running gear and a very racey 2.1 Pinto (I've already spent £1500 on) that's been in the wardrove for 10 years....

BV.