I second that....stick to tier-1. Most IT people do not want to support motherboard of the month club home grown cloners. So you often do your client an injustice...if you get hit by a bus, they go interview some other IT people, so those IT people come onsite to do their meet 'n greet and assessment..they see some cloner, instant price increase...IF..they even still want to pitch for this client. Or perhaps an agreement to "we're going to replace that within 1 year with a real server!"
A quick story....a while ago we had a dentist office client, and they hired someone who got them to switch to some other IT company (family or relative)...one of our rare few client losses. About 18 months later we got a call from them to take them back. We go visit...and they had their servers and all workstations replaced with some Equus brand cloners. 3 servers and around 15 chairs plus office PCs...so over 20 rigs. We had all those replaced again with Tier1 within 12 months. And charged a hunned bucks a pop to haul out the old cloners.
You might roll the dice and gamble on some low priority client that can afford lots of downtime, but higher priority clients...I'd stick with a tier-1 that has some 4x hour SLA on hardware warranty parts.