[Amps] Source wanted for HV switch-mode power supply

[mikea]

(maiden post here)

I've just got a Burle 8791, socket, chimney, and whatnot, and am looking
hard at building an amp. Does anyone know a good source for a suitable
switch-mode power supply -- 2500 V DC at about 750 mA? 

I've talked with Ralph W5JGV, but he's going to be taking care of a
medical disaster for some time and not able to do custom construction.
I really want to avoid big iron if possible, to keep cost and weight
down. If at all possible, I'd like one that can be turned on when I hit
the mike switch or key the first DIT or DAH, rather than one that takes
a few seconds to soft start. Watts Unlimited had precisely what I want,
but the proprietor appears to have gone SK. 

I'll also be looking at 2 KV supplies at .5 and at .25 A for a VHF amp
(2 x 4CX250B) and a UHF amp (single 4CX250K) later on. 

-- 
Mike Andrews, W5EGO
mikea at mikea.ath.cx
Tired old sysadmin